Compared by Tree Identifier's makers
Pl@ntNet alternatives, matched to why you're looking
Pl@ntNet is free, open and run by research institutes, so leave it only for a reason. Here is the alternative that fits each one, with dated prices and our own app's gaps stated.
Written by the makers of Tree Identifier. We compared what each app documents on its own App Store listing and website; we did not run lab tests. How we compared · Where the other app is the better pick

In short
The best Pl@ntNet alternatives depend on what you miss. For a person to confirm the name, iNaturalist; for identification offline with no account, Seek by iNaturalist; for houseplant care, diagnosis and the top published test scores, PictureThis (paid); for another free research app, Flora Incognita; for nothing to install, Visual Look Up on iPhone or Google Lens. Pl@ntNet itself stays free with no in-app purchases (2026-10-21).
- Disclosure: we make Tree Identifier, one of the alternatives, listed last with its gaps. Facts come from each app's own listing, website and help pages, checked 2026-10-21.
- Pl@ntNet is free with no in-app purchases on its US listing; only PictureThis and Tree Identifier below sell upgrades.
- Before switching, try Pl@ntNet with a close photo of a flower, fruit or leaf: its own listing says a whole-plant photo is often not enough.
Pl@ntNet is a good app to start from: free, open, run by research institutes and honest about its limits. People still look for alternatives, usually for one of five reasons. Find yours and you'll find the app that fits it. We make Tree Identifier, which is one of the options, so it comes last with its gaps listed.
Why people look for a Pl@ntNet alternative
| Your reason | Alternative that fits | What you give up |
|---|---|---|
| You want a person to confirm the name | iNaturalist (community review) | Your observation becomes public; review takes time |
| You want offline use without an account | Seek by iNaturalist | Seek's model is older than iNaturalist's online one |
| You want care reminders, diagnosis, the top test scores | PictureThis | Money: Pro purchases $3.99 to $49.99 (US listing, 2026-10-21) and tracking on its privacy label |
| You want another free research app | Flora Incognita | Web identification is not documented on the pages we read |
| You want nothing more to install | Apple Visual Look Up, Google Lens | Depth: a short suggestion, no organ tags, no observations |
A person, not a model. Pl@ntNet has community review too, but its own docs list a "lack of human resources to validate observations" among its weaknesses. iNaturalist is built around review: observations are checked by other users.
Offline without signing in. Pl@ntNet's offline mode needs an account and a download, and runs only on the mobile app. iNaturalist's help says Seek needs neither an account nor a connection.
Gardens and houseplants. Pl@ntNet's US listing says it "can also identify a large number of cultivated plants (in parks and gardens) but this is not its primary purpose." If most of your plants are in pots or borders, an app built for care fits better.
Where the other app is the better pick
Pl@ntNet itself does several things Tree Identifier does not. It is free with no in-app purchases on its US listing, runs on iPhone, Android and the web, can identify without a connection after you download its offline model, takes several photos of one plant tagged by organ, and has other users review shared observations, which then feed open science data. Tree Identifier is iPhone only, needs a connection, takes one photo, shows no confidence score and sells a Pro upgrade. Seek, iNaturalist and Flora Incognita are also free, and PictureThis did best in the published tests.
Facts checked October 21, 2026
Try this before you switch
Pl@ntNet's listing gives its own advice, and it explains most bad results: flowers, fruits and leaves are "the most characteristic organs" and should be photographed first, and a photo of the whole plant "is often not sufficient to allow a reliable identification". For a tree, that means:
- Photograph a single leaf up close, flat, in even light, and tag it as a leaf.
- Add a second photo of the flower, fruit or seed if there is one, tagged as such.
- Add the bark as a third photo, but don't rely on it: in the Rutgers tree test, bark photos were named to the right genus far less often than leaf photos by every app.
- If you're unsure which regional flora to search, use the multi-flora search the listing describes, which looks across all floras.
If Pl@ntNet still misses on trees you know, compare it against an alternative with the 15-minute test at the end of this page.
How we compared
We make Tree Identifier. We compared the alternatives on what each app documents about itself: its US App Store listing (price, in-app purchases, privacy label, description), its website and help pages, all read on 2026-10-21. We did not use the other apps or run lab tests. For accuracy we cite published third-party tests only, never an app's claim about itself. Where a page says nothing, we write "not documented", never "no". We publish no accuracy figure for Tree Identifier, because none has been measured independently.
Free alternatives
- iNaturalist (706 ratings, average 4.08, US App Store, checked 2026-10-21, for the redesigned app). Free and nonprofit. The AI suggests a name and other people can confirm or correct it, and your observation becomes public biodiversity data. On trees it scored higher than Pl@ntNet in the 2020 Rutgers test (92.27% against 85.45% of leaf photos named to the right genus, from the team's Rutgers poster), and on pasture plants in the 2025 University of Maryland Extension test (79% against 66% right on the first suggestion). It also has a website and an Android app.
- Seek by iNaturalist (30,912 ratings, average 4.75, US App Store, checked 2026-10-21). Free, no account, "designed to be safe for children", identifies on the device without a connection, and keeps your records on your phone. iNaturalist says its model is generally older than the online one. On iPhone, iPad and Android. The full comparison is on Seek vs iNaturalist.
- Flora Incognita (595 ratings, average 4.8, US App Store, checked 2026-10-21). Free and without advertising, its US listing says, because it is part of a research project by scientists at the Technical University of Ilmenau and the Max Planck Institute for Biogeochemistry in Jena. It is aimed at wild plants and keeps your finds in an observation list with maps. In Hamlyn Jones's 2020 test of British plants, its first suggestion was right to species 46% of the time, against 39% for Pl@ntNet.
Paid alternative: PictureThis
PictureThis, listed as PictureThis - Plant Identifier (1,120,486 ratings, average 4.8, US App Store, checked 2026-10-21), is the app to pick if you want care tools: disease diagnosis with treatment plans, watering reminders, a light meter, weed and toxic-plant identification, and 24/7 chat with plant experts. It came first in both the Rutgers tree test and the Maryland pasture-plant test. It is free to download, but on 2026-10-21 its US listing showed PictureThis Pro purchases from $3.99 to $39.99 and a Family Plan at $49.99, and its privacy label lists purchases, identifiers and usage data as used to track you; Pl@ntNet's label lists no tracking. The side-by-side is on Pl@ntNet vs PictureThis.
Built in: Visual Look Up and Google Lens
On an iPhone with iOS 15 or later, open a photo in Photos, tap the Info button, then the leaf icon; Apple says results come "from Siri Knowledge and the web". Google Lens does the same inside the free Google app, on Android and in Chrome on a computer. Both are generalists, fine for a quick name. In the Maryland test's bar chart of average scores, Visual Look Up sat a little below Pl@ntNet and Google Lens well below it.
Trees first: Tree Identifier (ours)
Tree Identifier, listed as Tree Identifier AI: ID Trees, is our iPhone app built around trees. One photo of a leaf, the bark, a flower, fruit or the whole tree returns the common and scientific names, origin, growing conditions and key traits, with a follow-up chat under each result and an AI Tree Expert tab. Finds fill a 138-species tree Collection and, with location allowed, a Tree Map. It needs no account and is free to download with optional in-app purchases (Tree Identifier Pro, $2.99 to $19.99 on its US listing, 2026-10-21).
Against Pl@ntNet it gives up a lot: it is iPhone only (it runs on iPad in iPhone layout), needs a connection for every identification, takes one photo at a time with no organ tags, shows no confidence score or list of other candidates, has no community review, and has no published test. Pick it only if a tree-focused log and follow-up questions matter more to you than those.
A 15-minute test before you switch
Pick a tree whose name you know for certain, such as a labelled park tree. Take five photos: a single leaf, the bark at chest height, a twig with buds, a fruit or cone, and the whole tree. Run them through Pl@ntNet and through the alternative you're considering. Score each answer for the right genus and the right species. If the alternative does no better on your trees, Pl@ntNet, free and open, is hard to beat. The best tree identification apps page explains the test in more detail.
What a photo can't settle
- The published tests used app versions from 2020 (trees) and 2025 (pasture plants); every app here has been updated since, so rankings may have changed.
Questions people ask
Is Pl@ntNet free?
Yes. Its US App Store listing shows it as Free with no in-app purchases (checked 2026-10-21), and its documentation calls it free and open to all. You need a free account to share observations and to download the offline model.
Is Pl@ntNet a bad app?
No. It is a free citizen-science project from four French research institutes, with a website, an Android app, an offline model and community review. In published tests it trailed PictureThis and iNaturalist, and its own docs are candid that it covers about 70,000 species and that errors may remain.
What is the best free alternative to Pl@ntNet?
iNaturalist if you want people to confirm the name; Seek by iNaturalist if you want no account and identification without a connection. Both are free with no in-app purchases on their US listings. Flora Incognita is another free research app, and iPhones already have Visual Look Up in Photos.
Which alternative works without internet?
Seek, which iNaturalist says does not require an internet connection and needs no account. Pl@ntNet's own offline mode needs an account and a download. Tree Identifier, PictureThis and Google Lens don't document offline identification.
Why does Pl@ntNet give a wrong or no result?
Its listing explains the usual cause: a whole-plant photo is often not enough. Photograph a flower, fruit or single leaf up close, tag the organ, send several photos of the same plant, and use multi-flora search if you're unsure which regional flora to choose.
Sources
- PlantNet (US App Store listing) — Apple App Store (seller: CTRE COOP INTERNAT RECHERCHE AGRO DEV)
- Install the offline (embedded) mode — Pl@ntNet documentation
- What is the difference between iNaturalist and Seek by iNaturalist? — iNaturalist Help
- Flora Incognita (US App Store listing) — Apple App Store (seller: Patrick Maeder)
- Look up what's in a photo with your iPhone or iPad — Apple Support
- Snap It or Scrap It: Putting Plant ID Apps to the Test — University of Maryland Extension (Amanda Grev)
- The Accuracy of Photo-Based Plant Identification Apps on Northeastern Trees (poster) — Rutgers University, Urban Forestry
- What plant is that? Tests of automated image recognition apps for plant identification on plants from the British flora (AoB PLANTS 12(6), 2020) — Oxford University Press (Hamlyn G. Jones)