PictureThis vs Pl@ntNet

Side by side

From each app's US App Store listing, website and docs, checked 2026-10-21. "Not documented" means the pages we read say nothing, not that the feature is missing.

Rating counts measure how many people rated each app, not how well it names plants. Across eight storefronts (US, Italy, Germany, France, UK, Canada, Austria, Switzerland), PictureThis had 1,658,928 ratings averaging 4.76 and Pl@ntNet 32,033 averaging 4.64 on 2026-10-21; Pl@ntNet's largest storefront is France, with 9,925.

How we compared

We make Plant Identifier, so read this as a comparison by an interested party, even though our app is not one of the two. Everything about PictureThis and Pl@ntNet comes from their own US App Store listings (description, In-App Purchases, compatibility), PictureThis's FAQ, and Pl@ntNet's website and documentation, read on 2026-10-21. Ratings come from Apple's public storefront data on the same day. We did not use either app for this page. For accuracy we cite a published third-party test, not the apps' claims about themselves; PictureThis's listing quotes its own accuracy figure, which we leave to them. Where a page says nothing, we write "not documented", which is not the same as "no".

Price and what the free version covers

PictureThis is free to download. On 2026-10-21 its US listing's In-App Purchases section showed ten rows: "PictureThis Pro" seven times at $39.99, once at $7.99 and once at $3.99, and "PictureThis Family Plan: $49.99". Apple's rows do not say which billing period each price covers, and the listing's terms mention a free trial "if offered" without a length. The FAQ describes a free allowance only for Android ("at least 4 IDs each day" when you earn free IDs); the iOS free tier is not described on the pages we read.

Pl@ntNet lists no in-app purchases. Its home page asks for donations "for keeping Pl@ntNet open and free to everyone". An account unlocks contributing observations and the offline model; nothing in its docs is sold.

Floras, coverage and plant health

The two apps organise their knowledge differently. PictureThis presents one large database ("over 400,000 plant species", listing) built around care: each identification leads to watering, light and fertilizing advice, and the app files your plants in a personal garden.

Pl@ntNet works with floras, lists of species for a region or a theme. Its listing describes multi-flora identification that searches "all the flora of the application and not only in the one you have selected", and its home page counted 77 floras on 2026-10-21. Its own figures disagree with each other ("about 20,000 species" on the listing, 84,710 on the home counter), so treat any species count as approximate.

On plant health, PictureThis diagnoses "the disease and offer[s] treatment advice". Pl@ntNet added disease and pest identification in March 2026, on the web and in the mobile app (version 3.25 or later, by choosing the "Diseases and pests" flora). Its docs state plainly that it does not "provide methods for treating plants". For more on reading symptoms yourself, see our guide to plant disease identification.

Offline use, account and your data

Offline. PictureThis's FAQ says identification "requires a network connection"; photos taken offline are saved and identified once you are back online. Pl@ntNet can identify with no connection after you activate embedded identification, sign in and download the model; its docs recommend re-running those identifications online later, because the online model is updated more often.

Account. PictureThis assigns an account automatically and says signing up "is not mandatory", though it recommends an email sign-up so you don't lose data when you change phones. Pl@ntNet asks you to create an account "to contribute and access all features", including offline mode.

Your data. From each one's own pages, read on 2026-10-21. PictureThis's FAQ says "we never process any photos without your permission", and that deleting your account removes all the data in it; its privacy policy, linked from the FAQ, refused our checker, so read it yourself before you sign up. Pl@ntNet's data page says it "does not share its users' personal data with third parties"; shared observations make images, identifications and plant locations public if you made them public, and for rare or endangered species you can keep the location confidential. Plant Identifier, our app, sends the photo, your approximate location (only if you allow it, or if the library photo carries one), your chat messages and a random install and device identifier to our server, which passes requests to Google (Gemini) and, when Google's service fails, to OpenAI; our server does not store your photos or messages (privacy policy).

What an independent test found

In a University of Maryland Extension test (updated November 24, 2025), Amanda Grev ran 90 photos of 30 pasture and hayfield plants, all in a vegetative state with no flowers or seed heads, through nine apps. PictureThis named 94% correctly on its first suggestion, the best of the nine; Pl@ntNet named 66%. That is one test, on grasses and pasture weeds without flowers, which are hard for any app; Pl@ntNet's own listing says flowers, fruits and leaves "should be photographed first". Our page on how accurate plant identification apps are sets this test beside the others.

A third option: Plant Identifier (ours)

This section is about our own app, so weigh it accordingly. Plant Identifier, listed on the US App Store as AI Plant Identifier Flower App, is an iPhone app for houseplants, garden plants and flowers. One photo of a leaf, a flower or the whole plant gives the common and scientific names, origin, growing conditions and characteristics. If a leaf is spotted or yellowing, the Diagnose tool gives a likely cause with a severity badge the AI writes, affected areas, treatment steps and prevention, and you can ask follow-up questions in a chat under the result. Care Guide, Light, Water Calculator and Toxicology are separate tools on the home screen, each working from a photo. It needs no account, is free to download, and the current version shows no paywall. On 2026-10-21 it had 4,333 ratings averaging 4.66 across 30 App Store storefronts.

Where Plant Identifier is not the pick

• Wild plants and hikes: Pl@ntNet has regional floras, a ranked list of candidates and an offline model. Plant Identifier needs an internet connection for every identification and shows one name, with no list of alternatives.
• Reminders and human experts: PictureThis sends watering reminders and has expert chat. Plant Identifier has neither; its Plant Expert chat is an AI assistant called Flora.
• Android, Mac or a browser: both apps cover more devices. Plant Identifier is iPhone-only and runs on iPad in iPhone layout.
• Several photos of one plant: Pl@ntNet accepts several, tagged by organ. Plant Identifier takes one photo per identification.
• Independent evidence: both apps appear in published tests; Plant Identifier has none.

For more choices, see the PictureThis alternatives, and for the other free science app, Flora Incognita vs Pl@ntNet.