Editorial transparency. Floralens publishes this site and tops the ranking. The test stays argued: each app is scored on the same criteria and each verdict cites public sources (UK App Store, Google Play UK, RHS, specialist press, publisher privacy label).
Our ranking at a glance
| Rank | App | Best for | Annual price | Rating | Languages |
|---|---|---|---|---|---|
| 1 | Floralensour app | Offline diagnosis and care, no account | $34.99 | 39 | |
| 2 | Planta | All-in-one care planner | $17.99 – $47.99 | 12 | |
| 3 | Plant Parent | An alternative to PictureThis from the same publisher | $29.99 | 15 | |
| 4 | Groww | Outdoor garden, weather and geolocation | Gratuit sur la fiche App Store | 1 | |
| 5 | PictureThis | The largest review base on the App Store | $39.99 | 28 | |
| 6 | Greg | A precision community for English speakers | $19.99 – $39.99 | 1 | |
| 7 | PlantIn | Paid consultations with botanists | $29.99 – $39.99 | 19 | |
| 8 | PlantAI | Botanist chatbot, third app from the Glority studio | $49.99 | 12 | |
| 9 | Blossom | Botanist chatbot + edible garden, partly English-only interface | $59.99 – $79.99 | 5 | |
| 10 | Plantum | ex-NatureID, opaque pricing | $39.99 | 9 | |
| 11 | PlantSnap | Largest claimed catalogue and a social layer | $21.99 – $59.99 | 17 | |
| 12 | Plant Guru | Care + lunar calendar, second app from the AIBY studio | $5.99 – $39.99 | 7 |
How to read this comparison
A care app is only really worth it if it joins up three functions: identify the species, read a symptom and schedule a care calendar that holds over time. The candidates cover these three axes unevenly.
The hidden difference rarely sits in the photo scan. Most engines now reach 90 to 98% accuracy on common species. The real gap is on the care plan: quality of disease diagnosis, fineness of watering reminders, accounting for season and light, the ability to work offline.
The price then clearly separates the market. Free apps such as PlantNet or Seek focus on identification and do not enter this ranking. Paid care apps swing between roughly 30 and 70 pounds a year, with experience gaps wider than you would imagine.
For UK gardeners, it is worth noting that the RHS now offers its own care tool inside the RHS Grow app, drawing on two centuries of horticultural advice 1; the apps below are the international leaders that dominate the UK stores alongside it.
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Top 12 care apps tested in 2026
Floralens
Dr. Flora diagnosis, context-aware care and privacy, with no mandatory account
- Annual price
- $34.99 (7-day free trial)
- Free version
- 4 free IDs, no sign-up
- Languages
- 39
- App Store rating
- 4,7 ★
- 66-symptom diagnostic engine (Dr. Flora)
- Offline queue for scans plus access to saved plant and garden info
- No mandatory account, no cookies, no data selling
Floralens joins up photo identification (species, confidence score, alternative hypotheses), the Dr. Flora diagnosis across 66 symptoms cross-referenced with their causes and treatment plans, and a context-aware care plan by pot, exposure, season and hemisphere: a south-facing ficus is no longer reminded like a bathroom pothos. The room organisation, the photo growth journal and the light guide round out daily use.
Two choices set the app apart: no mandatory account, with photos that stay on the device unless you explicitly ask otherwise; and broad language coverage with 39 languages, against 12 for Planta. Published in France by Chapalu Studio, it offers a clear annual subscription and four free identifications with no sign-up.
I downloaded the app because I was given a plant and had no idea what it was or how to keep it alive. I took a photo and two seconds later I had the name plus the watering and light information, and whether it was toxic for my cat (it was, so the plant was moved urgently). The cool thing is the room organisation. I put my plants in "living room" and "balcony" with the watering reminders that go with them. Before, I watered a bit at random; now it is structured.
I used to manage to kill even a fake plant, and I have finally got a grip on this monstera that kept putting out one yellow leaf after another. In a single photo everything was detected: the pot, the spot, the light, and I had recommendations straight away.
Just the app I needed to get into gardening. I have never been much of a plant person, and finding this app lets me feel supported and know what to do for each of my plants.
Floralens combines photo identification, the Dr. Flora diagnosis across 66 symptoms, context-aware watering reminders (pot, exposure, season, hemisphere) and 39 languages. Four free identifications with no account before a clear annual subscription.
Planta
Plan care like a diary, for methodical beginners
- Annual price
- $17.99 – $47.99
- Free version
- Free download
- Languages
- 12
- App Store rating
- 4,8 ★
- App Store Editors' Choice
- Smart care schedules, light meter, and Dr. Planta diagnosis
- Plant journal and progress tracking
Planta is a leading care app, with 5 million users and 25 million plants claimed on its App Store listing 2. The app offers smart reminders that adjust watering to the plant, the room, the measured light and the season. The built-in light meter is one of the best implementations on the market.
On the user-review side, the picture gets more nuanced on Google Play UK 3 where the rating drops to 4.1/5 on 20,200 reviews, against 4.7/5 on the App Store. Recurring criticisms focus on the depth of customisation for advanced profiles and on occasional reminder-sync problems.
I told myself I needed help so as not to end up a houseplant serial killer. Since I discovered Planta, it has been a miracle. My flat is turning into a little jungle, to my great delight. I warmly recommend this app.
I have used Planta premium for a year. It is a good tool for BEGINNERS. The catalogue is thorough, there are plenty of explanations and the reminders are useful. Once you are experienced, you hit limits. The customisation of reminder frequencies is not deep enough to stay interesting.
I thought the app was great. I have used it for months. But I have only just noticed that the watering does not update. On my plant's page, watering says in 29 days, while if I look at the same plant via search it says 11 days. My watering schedule is wrong.
Planta remains the reference for planning care: smart reminders, light meter, photo journal. The limit shows for experienced gardeners and for anyone wanting to avoid a heavy privacy label.
Plant Parent
Identification + diagnosis, by Glority, cheaper than PictureThis
- Annual price
- $29.99
- Free version
- Essai 7 jours, puis paywa…
- Languages
- 15
- App Store rating
- 4,7 ★
- Scanner fiable, y compris sur plantes sauvages et exotiques
- Rappels d'arrosage personnalisés par espèce et saison
- Diagnostic des maladies (jaunissement, taches, dessèchement)
Plant Parent shows 4.4/5 on 107,000 Google Play UK reviews 4. The scanner recognises common species and more exotic plants alike, the disease diagnosis covers yellowing, spots and necrosis, and the watering reminders are personalised by species.
The point no British media spells out: Plant Parent is published by Glority Global Group Ltd., exactly the same Asian studio that releases PictureThis. The two apps share the same recognition architecture and the same commercial model (a 7-day trial then a paywall). The difference plays out mostly on branding and entry price.
After a 7-day trial, you move to more than 30 pounds a year. I thought it was a free app. Correction after your message: you can indeed use it free and get plant-care advice. I admit the scanner is even rather strong at recognising plants.
Honestly I love this app: simple, practical, super reliable (even for wild plants whose species you want to know). It is really top notch. One improvement: being able to update a plant's state. For instance I had one that used to be ill but I cannot edit its state again.
The app works well, but you are better off watching free tutorials than installing this one, which will charge you an annual fee with no warning (no notification, just a charge on my account). As a student, this mistake cost me dearly. I would not recommend it unless you can afford it.
Plant Parent is published by Glority Global, the same publisher as PictureThis. The app is solid but only justifies itself at a clearly lower price; otherwise, you may as well take PictureThis directly.
Groww
Outdoor garden or balcony: when the weather matters more than the room
- Annual price
- Gratuit sur la fiche App Store
- Free version
- Téléchargement gratuit
- Languages
- 1
- App Store rating
- 4,4 ★
- Prise en compte de la météo et de la géolocalisation en temps réel
- Calendrier de soin adapté aux plantes d'extérieur et au climat local
- Suivi de croissance et journal photo intégrés
Groww's distinctive feature is its handling of outdoor plants, letting you care for your garden while taking geolocation, outside temperature and weather conditions into account. A plant will not have the same water needs in the north or the south of the country, and Groww is one of the rare apps to build in this climatic logic.
The app also identifies plants by photo and offers a care calendar. Growth tracking, the photo journal and the watering reminders are there, in plainer formats than Planta. The species catalogue is not publicly disclosed, which complicates comparison.
The ideal profile: an urban gardener with a balcony, a terrace or a yard, who wants a calendar that reacts to a heatwave as much as to late frosts.
We are delighted to have this app. Being able to save several photos for the same plant is very useful, and it would be a plus to be able to date the photos to see how things change across the seasons. In any case I will keep recording my plants; it is a lovely app, thank you very much.
I am discovering this app today. It is simple but thorough, tells you everything about your plant: where to plant it, how to care for it and so on. You easily build the list of plants you own (the app identifies them easily) and a wishlist. Genuinely very practical, very effective.
Hello, I looked through the history of comments and noticed this problem is recurring. I did note the developer's reply mentioning a temporary server issue. Several months, nearly a year, have passed. The problem remains, which is a real shame because the app seems to have lovely potential.
Groww is the only app in the ranking that truly takes the outdoor garden seriously, with geolocation and local weather. For an urban flat centred on houseplants, Planta or Floralens will go further.
PictureThis
The most popular app, if privacy is not your criterion
- Annual price
- $39.99 (offer-dependent)
- Free version
- Free trial
- Languages
- 28
- App Store rating
- 4,8 ★
- 1M+ App Store ratings
- 400,000+ species and 98% accuracy claimed by the developer
- Disease diagnosis, pet warnings, light meter, and expert consultation
PictureThis shows a high average rating on the UK App Store and more than 1.6 million reviews internationally 5. The listing claims 400,000 species recognised with 98% accuracy, personalised care plans, a light meter, disease diagnosis and paid expert consultations.
The official privacy label indicates that the app uses tracking data (purchases, identifiers, usage data) across third-party apps and websites. It also links to your identity: contact details, user content, search history, identifiers and diagnostics. It is one of the heaviest profiles in the ranking, to be set against PlantNet or Floralens, which collect far less.
On price, offers vary by region and promotion. On the UK App Store, the publisher Glority Global shows a free-trial model followed by in-app purchases whose detail changes from market to market.
Very reliable, I love it. A shame that the free data library eventually disappears.
My plants are healthy, but a few marks make me want to check. The app just tells me they are fine, and that is all. It is not as sharp as the advert suggests. Given the price of the subscription, I expected better, especially as a beginner.
To assess a plant you would need at least several photos. Here you get contradictory analyses on the same plant. Advice off the mark. I do not understand where this app's reputation comes from.
PictureThis adds up more than a million reviews and a claimed 98% accuracy. The trade-off is a heavy privacy label and pricing that varies by offer and region.
Greg
English-language community and precision watering for enthusiasts
- Annual price
- $19.99 – $39.99
- Free version
- Free download; premium un…
- Languages
- 1
- App Store rating
- 4,6 ★
- Active community forum and social feed
- Plant identification on both iOS and Android
- Precision watering guidance is a core premium feature
Greg's listing describes a worldwide community of plant parents and a no-guesswork watering system based on the species, the pot size and the home environment 6. The flagship feature is PlantVision: it scans the plant, measures the pot and the distance to the nearest window.
One limit weighs on the verdict. The premium functions are essential: watering accuracy, notifications, light measurement and seasonal recommendations all sit behind a subscription. The free tier covers only a handful of plants.
Greg keeps one strong asset: its troubleshooting community is one of the most active on the market, with answers in a few minutes on the in-app forums.
The graphics are lovely and the community is genuinely helpful when something goes wrong. The watering logic is clever, though the truly useful features need the subscription.
With this app you can know when to water five of your plants! And if you pay the subscription you can have a reminder for all of your plants. Plenty of apps do it for free. Greg seems to think the only care a plant needs is to water it once in a while. No option for mist, fertilizing. Don't bother.
Greg offers an active community and precision watering, but the app remains English-language on the interface and the free version is very limited.
PlantIn
Paid consultations with botanists when doubt persists
- Annual price
- $29.99 – $39.99
- Free version
- Free trial
- Languages
- 19
- App Store rating
- 4,6 ★
- Google Play currently claims 24,000+ species and 40M+ users
- Plant diagnosis, light meter, care reminders, and history journal
- Paid botanist help for more detailed support
PlantIn gathers more than 24,000 species on Google Play, a diagnosis, a light meter, care reminders, a growth journal, and above all paid consultations with human botanists. That is the distinctive argument: when the identification hesitates, an expert takes over.
The app shows 4.6/5 on the App Store with more than 300,000 cumulative reviews. The privacy label flags tracking and several categories of identity-linked data, in the same vein as PictureThis. An offline mode exists for fungus identification but not for plants.
The target user profile: a collector willing to pay for a human opinion in case of doubt, and who accepts pricing that varies by offer and market.
Top class, genuinely helps me track my plants and keep them healthy.
Can help, but it does not give a real treatment beyond the basics.
The reminders are useful, but there is plenty to fix; the water calculation for outdoor plants is non-existent and annoying because you get useless reminders. Paying an extra fee for a botanical opinion when the app cannot even recognise the plant, and I already have a subscription: a first free consultation would be the bare minimum.
PlantIn combines identification, diagnosis and access to paid botanists. Public pricing varies considerably across markets, which complicates direct comparison.
PlantAI
Botanist chatbot to ask your questions in natural language
- Annual price
- $49.99
- Free version
- Essai 7 jours, puis paywa…
- Languages
- 12
- App Store rating
- 4,5 ★
- Chatbot pour poser des questions sur n'importe quelle plante
- Diagnostic des maladies avec recommandations de traitement
- Interface entièrement en français sur l'App Store FR
PlantAI shows 4.6/5 on about 1,000 UK App Store ratings 7. The app puts a botanist chatbot on stage: you type your questions ("my ficus is dropping leaves, what should I do?") and the assistant replies with contextual recommendations. Photo diagnosis and species identification are available in the same flow.
The point no British comparison mentions: PlantAI comes out of the same Glority Global Group Ltd. studio as PictureThis and Plant Parent. The developer's reply on the App Store even points to support@picturethisai.com. The three apps share the same recognition architecture and the same subscription policy (a 7-day trial then an annual Premium).
For the user, the choice is not neutral: a comparison that lists PictureThis, Plant Parent and PlantAI is listing three brands of one engine.
Identifies each of my plants and trees perfectly. It is paid, and I find that fair if it lets us save our plants instead of rebuying them. The subscription is reasonable. Thanks to the developers of this app.
The app looks very good but it forces me to identify my plants from photos without giving me a choice. And apparently it gets it wrong, until the fifth attempt where it finally found it.
How come I can no longer use the app even though the renewal was automatic? The only reply I get to my requests is "Oops! Something went wrong." What should I do?
PlantAI is the third plant app from the Glority Global studio, after PictureThis and Plant Parent. Its distinctive angle: a conversational chatbot that answers your plant questions in natural language. The engine stays the one from the Glority family.
Blossom
Botanist chatbot, edible garden and water calculator, with a partly English-only interface
- Annual price
- $59.99 – $79.99
- Free version
- Limited IDs
- Languages
- 5
- App Store rating
- 4,6 ★
- Botanist chat consultation feature
- Watering calculator
- Wishlist feature
Blossom shows 4.6/5 on 6,400 UK App Store reviews 8. The app is published by Mosaic S.r.l. (Italy) and combines photo recognition, personalised care reminders by species, pot and light, a water calculator, weather alerts and an edible garden module with a planting calendar.
The point repeated in reviews: even where the listing is localised, several modules, notably disease diagnosis, can default to English. For an app sold at a premium annual price, that detail tells quickly.
The privacy label mentions advertising tracking (purchases, location, identifiers) and several identity-linked categories. It is one of the heaviest profiles in the ranking, to be set against Floralens, which does not ask for an account by default.
The content seems fairly thorough. When searching for plants, the close matches suggested seem to fit. Features still to discover.
Very good app, intuitive, lovely visuals, fresh, but an English version for plant diagnostics. I saw a comment more than a year old already pointing this out.
The "diagnosis" mode is entirely in English. Very annoying. A shame because the cost is high for a localised market. If you bring the app up to standard I will renew the subscription, otherwise goodbye.
Blossom covers identification, diagnosis, reminders, edible garden and weather alerts. The main friction for some users: the diagnosis module's interface remains English-only, despite a translated App Store listing.
Plantum
AIBY care suite, light meter, water calculator, holiday mode
- Annual price
- $39.99
- Free version
- 1 free ID, then paywall
- Languages
- 9
- App Store rating
- 4,6 ★
- Sometimes available at very low promo prices
- 40,000+ recognizable natural objects claimed on public listings
- Disease diagnosis feature
Plantum shows 4.5/5 on 7,700 UK App Store reviews 9. The care suite is generous: watering, misting, fertilising and rotation reminders, a light meter, a water calculator, weather tracking for outdoor plants, and a holiday mode that shares the calendar with someone close.
Two frictions recur in reviews. The explanatory text and the plant names can stay in English, despite a translated App Store listing; the developers reply that localisation is pending. And the real price surprises: a weekly subscription adds up steeply over a year if you do not turn auto-renewal off in time.
Plantum is published by AIBY, the same studio that releases Plant Guru (rank 12 of this ranking). As with Glority, you are looking at two brands from one publisher.
Not bad, but I cannot get it to write in my own language, neither the explanatory text nor the plant title; I get everything in English, so it is a bit of a pain. I read English fine, but I would like the translation without going to Google Translate for the plant name.
Using this app means a monthly subscription that, unless I am mistaken, is not even mentioned. Neither its existence nor its monthly price, which is far too high. Given how appealing this app is to a very wide audience, I think dividing the price by four or five would multiply your subscribers tenfold or more.
I wanted to test the app before subscribing. The only way to test it was to subscribe with a free trial. Cancelled ten minutes later because I scanned several plants and was told they were ill and that I needed to see an expert, not included in the subscription.
Plantum (ex-NatureID) claims 14 million users and a complete tool suite: light meter, water calculator, weather tracking, holiday mode. But the incomplete localisation and the weekly pricing weigh heavily on use.
PlantSnap
Very large claimed catalogue and a community layer, lighter on care
- Annual price
- $21.99 – $59.99
- Free version
- Free download
- Languages
- 17
- App Store rating
- 4,6 ★
- 600,000+ plant types claimed on the App Store
- Large community with 50M+ users claimed by the developer
- Care advice and disease-diagnosis features are now highlighted in store copy
PlantSnap shows 4.5/5 on 13,000 UK App Store reviews 10 and claims 600,000 species recognisable plus 50 million cumulative users. The latest versions add growing tips, diagnosis features and SnapMap (a world map of plants identified by the community).
The care angle stays lighter than Planta's or Floralens's: you get species care pages, but not the fineness of personalisation (pot, measured light, season) that turns a page into an action plan. UK users mostly note that common names are not always translated out of the binomial Latin, which takes extra effort.
The privacy label mentions cross-app and cross-site tracking, along with many identity-linked categories, one of the heaviest profiles in the ranking.
Just discovered it, and I am a fan. One photo and there you go, you know which flower or plant it is.
No common name on all the plants and flowers.
Watch out for the adverts that block the app. It is a shame and it stops you using the thing.
PlantSnap was long pure identification; the latest versions add growing tips and a diagnosis. Care remains less polished than with Planta or Floralens, and the social layer does not appeal to everyone.
Plant Guru
Care, water calculator and lunar calendar, a recent product with a small sample
- Annual price
- $5.99 – $39.99
- Free version
- Gratuit avec achats intég…
- Languages
- 7
- App Store rating
- 4,4 ★
- Calculateur d'eau et luxmètre intégrés
- Mode vacances pour partager les soins avec un proche
- Filtre Contrôle de sécurité qui masque les plantes toxiques pour animaux
Plant Guru shows 4.5/5 on 274 UK App Store ratings 11. The app takes the classic care base (watering, misting, fertilising and rotation reminders) and adds three more original functions: a built-in light meter, a water calculator by plant and pot size, and a lunar calendar to align care with the moon's phases.
The Plant Nanny mode lets you share the care calendar with a trusted person during an absence; the Safety Check mode hides plants toxic to animals from search results, a rare attention on this segment.
The product stays recent: a sample under 300 ratings is not enough to assess diagnosis reliability over time. And the AIBY studio already releases Plantum (rank 10), so on the market you see two care brands sharing one technical team.
I purposely tested the app on a plant I knew I overwatered by accident and it said that it was underwatered, the plant was healthy and I emptied my fish tank water in it and it's not draining properly somehow so the plant started dying from drowning in water and this app tells me to give it even more water. It also gave the wrong identification to a couple of my plants.
Plant Guru is the second plant app from the AIBY studio, after Plantum. The product is new, the review sample still modest (under 300 ratings), and the value unlocks almost entirely on the premium side.
Which app for which profile?
Who is it for?
The cautious beginner
A first pothos, fear of killing the plant, a need for a simple framework with no jargon.
The light meter, the guided reminders and the visual library are built for newcomers. Clear annual pricing.
Who is it for?
The pet owner
A cat or dog at home, absolute priority on toxicity before buying or placing a plant.
Toxicity pages by species and by animal, with no account or tracking. Identification possible in the shop with no connection.
Who is it for?
The indoor collector
Thirty plants and more, different rhythms, a need for long-term tracking and fine diagnosis.
The Dr. Flora diagnosis across 66 symptoms, garden management with room organisation, full offline mode.
Who is it for?
The outdoor gardener
Balcony, terrace, vegetable patch: water needs vary with the weather and the season.
The only candidate in the top to build geolocation and local weather into the care calendar.
Who is it for?
The rushed pragmatist
Wants immediate identification, with no extra app to install, no sign-up.
Free, no subscription, backed by CIRAD. To be paired with a care app as the need grows.
Who is it for?
The one who wants a human on the line
A plant ill for three weeks, the diagnosis hesitating, a need for an expert opinion.
Paid consultations with human botanists. To be paired with a free care app for the everyday.
What we learned testing these twelve apps
Four findings come back once the test is done.
First finding: the market is dominated by two studios. The Glority Global Group Ltd. studio publishes PictureThis, Plant Parent and PlantAI 4 5 7, three of the twelve tested apps sharing the same recognition architecture and the same subscription policy. The AIBY studio publishes Plantum and Plant Guru 9 11. Five apps in the top 12 therefore come from two houses. A media recommendation that cites "PictureThis or Plant Parent or PlantAI" as three options amounts to comparing three brands of one engine.
Second finding: localisation is often partial. Plantum and Blossom show a translated App Store listing, but the interface, notably the diagnosis modules, can stay in English. Users end up using a translation tool to understand a diagnosis they have already paid for. A care app sold at a premium price without a fully localised interface creates a friction that the App Store reviews never miss.
Third finding: privacy varies by a factor of ten across the candidates. PlantNet, backed by CIRAD 12, collects location, name and the photos you send, for explicit scientific uses. PictureThis, Plant Parent, PlantAI, Plantum, Plant Guru, PlantSnap and Blossom additionally collect advertising tracking across apps, identifiers, search histories and diagnostics. Floralens, by contrast, asks for no account by default.
Fourth finding: context-aware care remains rare. Most apps offer watering reminders. Very few build in local weather (Groww), the room and measured light (Planta), or the season combined with the hemisphere (Floralens). Yet that is exactly where the difference plays out between a useful watering and an out-of-context instruction. As INRAE notes in its presentation of digital tools for plants 13, diagnosis apps are an aid to diagnosis, not an automatic certainty.
Frequently asked questions
What is the best free app to care for plants?
None of the twelve care apps tested is entirely free. The free versions of Planta, Plant Parent and PictureThis give access to identification but lock personalised watering reminders and disease diagnosis. Floralens offers four free identifications with no account, then an annual subscription. For 100% free identification, PlantNet (backed by CIRAD) remains a leading reference, but it does no care; the RHS Grow app is a UK-grown alternative that bundles ID with care advice 1.
Planta or Plant Parent: which to choose in 2026?
Planta aims at a beginner to intermediate audience, with a very visual care planner and a built-in light meter. Plant Parent is published by Glority Global (the same publisher as PictureThis) and combines identification, diagnosis and reminders at a close entry price. On the App Store, Planta is better rated (4.6/5 against 4.4/5 on Google Play for Plant Parent), but the verbatim reviews are fairly similar in quality. The choice comes down to price and the publisher's ecosystem.
Can a care app replace a gardener or a botanist?
No. INRAE notes clearly 13 that diagnosis apps are an aid to diagnosis, not a professional opinion. For a complex or persistent case, PlantIn offers paid consultations with human botanists. For everyday diagnoses (watering, light, common pests), a good care app resolves the majority of cases.
Do care apps work offline?
Very few. Of the twelve tested, only Floralens offers a genuine offline mode with an embedded local database. Planta, PictureThis, Plant Parent, Greg, PlantIn and Groww need a connection to identify a plant. This difference matters if you regularly identify plants in a garden centre, on a hike or in a flat with poor network coverage.
Are Plant Parent and PictureThis really published by the same company?
Yes. Both apps are published by Glority Global Group Ltd., as the publisher line on the App Store for PictureThis 5 and on Google Play for Plant Parent 4 indicates. They share the recognition architecture and a similar commercial model (a 7-day trial, an annual subscription). Plant Parent is positioned as the more accessible alternative on price.
Going further
This article focuses on care apps. If your main need is to identify a plant (with no care planning), we have published a separate comparison of the best identification apps, with a different ranking: PlantNet, Seek and Flora Incognita feature in good positions there.
And if you are just starting out, the selection of 15 easy houseplants limits false starts, whichever app you choose.