iNaturalist: How to Identify Plants by Photo (And When to Avoid It)

iNaturalist identifies a plant from a photo in two ways at the same time. An image recognition model makes a guess in seconds, and a community of real people checks that guess later, sometimes in minutes, sometimes in weeks. It is free, has no ads, and has no paid plan: it is maintained by a non-profit organization (iNaturalist on the App Store, accessed on 08/22/2026).

It can be confusing because there are three apps with this name, they do completely different things, and the one named simply iNaturalist has the lowest user rating of the three. Below, we break down which one you should actually download, step-by-step guides for both, how accurate they are according to independent tests, and why that potted plant in your living room is the exact scenario the platform asks you not to post.

Quick summary:

• There are three apps: Seek identifies plants instantly without an account, iNaturalist posts your photo for the community to verify, and iNaturalist Classic is the older version of the second app.

• The platform is entirely free, with no ads or premium versions. Instead of paying with money, you contribute to science, your observation becomes public biodiversity data.

• In a peer-reviewed test with 857 photos, Seek got the species right on the first suggestion in 65.6% of cases, third among five apps (Hart et al., 2023, People and Nature). The sample consisted of wild flora, not potted plants.

• A plant cultivated by humans is never reviewed by the community. It is classified as "Casual" and leaves the queue of the identifiers. iNaturalist itself writes that it tolerates, but does not encourage, observations of houseplants (iNaturalist Help).

• For indoor houseplants, you need a different kind of tool. Bloom identifies plants using Plant.id, an engine with 93% accuracy in independent university testing, offers a free version, and is available for iOS.

Which iNaturalist App Is Which? There Are Three of Them

If you search for "iNaturalist" in the App Store, you will find three different listings, all from the same organization and all completely free. They solve different problems, and picking the wrong one is the most common reason people get disappointed with the platform.

Ratings and review counts gathered on 8/22/2026, combining all App Store regions where each app is published: 103 storefronts for Seek, 62 for iNaturalist, and 96 for Classic. App Store ratings are region-specific, so looking only at the US store will show different numbers than the global total.

Seek is what most people are actually looking for when they want to "identify a plant with iNaturalist." It gives you answers in seconds, does not require an account, and does not post anything online.

The app called simply iNaturalist is the newest of the three, launched in September 2024, compared to March 2018 for Seek and February 2011 for Classic, and it is the worst rated at 4.11. It completely redesigned an interface that many users had been using for over a decade, and the rating reflects that backlash.

Classic is still fully functional and has a better rating than its replacement. Its store page suggests migrating to the new app, but existing users are not forced to switch yet.

Is iNaturalist Free?

Yes, completely. Both iNaturalist and Seek are free, with no ads, no identification limits, and no paid tiers. The platform is run by a non-profit organization and supported by donations and institutional partners, including the California Academy of Sciences and the National Geographic Society.

There are no hidden paywalls, which is a massive advantage over almost all other plant identification apps. However, there is a catch, but it is scientific rather than financial.

When you publish an observation on iNaturalist, it becomes a public biodiversity record, with a photo, date, and approximate location, open for anyone to consult. Records that reach the platform's quality grade and are licensed for reuse are sent once a week to GBIF, the largest public biodiversity database in the world (iNaturalist Help, accessed on 08/22/2026). You do not pay with money, you pay with data.

Seek is the perfect alternative if you do not want to make this trade. It does not require an account, does not collect user data by default, and never publishes your photos.

How to Identify a Plant on iNaturalist: Step-by-Step

This is the workflow for the main iNaturalist app, which posts your observations to the community. It takes about a minute to upload, and human confirmation comes later.

1. Create an account. This is mandatory here, though Seek does not require it.

2. Photograph the plant. Focus on the most distinct parts rather than photographing the entire bush. Focus on flowers first, then fruit, then leaves. Twigs and bark are notoriously hard for any app to recognize.

3. Add multiple photos to a single observation. One photo of the flower, one of the leaf, and one of the overall growth habit will help human identifiers much more than three identical photos of the same leaf.

4. Check the date and location. The location allows the AI model to limit its suggestions to what actually grows in that region, and it helps human identifiers know if your suggestion is realistic for the area.

5. Review suggestions and select one. The app will show you an ordered list of possibilities. If you are not sure, you can choose a broader group, like the genus or simply "plants." An honest, broad guess is much better than a wrong species guess.

6. Mark the plant as cultivated. If the plant is in a pot, a garden bed, or was planted by someone, make sure to check this box. This setting changes how your observation is handled, and the section below on potted plants explains why.

7. Publish and wait. There is no timeline for community confirmation. It might take minutes or it might never happen, depending entirely on how many active volunteers are identifying that plant group in your area.

An observation with a clear photo of an open flower, a leaf photo, and an accurate location is usually confirmed quickly. A single, blurry photo of a green leaf with no location data can sit untouched for months because it is impossible to separate similar species from that photo alone.

How Seek Works and Why It Is Instant

Seek uses the same image recognition database as iNaturalist, but reverses the process: instead of publishing your photo and waiting, it identifies the plant live on your screen as you point your camera.

You simply open the camera in Seek, point it at a plant, and the app narrows down the taxonomy in real time as you get closer to the species level. It does not require an account, does not need an internet connection for most identifications, and never posts what you point your camera at.

The design choice is clear in the store listing itself: Seek is rated for ages 4 and up, does not require registration, does not collect user data by default, and obfuscates your location on purpose, using only the approximate region to improve suggestions (Seek on the App Store, accessed on 08/22/2026).

The trade-off is that you lose human verification. Seek gives you the machine's best guess and stops there. No real experts will review your photo to correct any AI errors.

Who Confirms the Name: The Community and the Research Grade Label

Real human confirmation is the one feature none of iNaturalist's competitors can replicate, and it is the entire reason the platform exists.

An observation posted on iNaturalist receives the Research Grade label when it has at least two identifications and more than two-thirds of the community agrees on the same name at the species level (iNaturalist Help, accessed on 08/22/2026). Until this happens, it remains as "Needs ID" and stays in the identifiers' queue.

In practice, this means a Research Grade name on iNaturalist is not just an AI guess, it is a consensus of real people who understand that specific group of plants and reviewed your photo. No automated app can offer that.

This badge can also be lost. If the community votes to change the identification to a broader category, or decides the observation needs more work, it goes back into the queue. It is a self-correcting system.

Is iNaturalist Actually Accurate? What the Science Says

Seek correctly identified the species as its top suggestion in 65.6% of cases in the most comprehensive independent study of plant identification apps to date. This put it in third place out of five free apps tested.

The number comes from Hart and colleagues (2023), published in People and Nature, by the British Ecological Society. There were 857 photos covering 277 species and 204 genera, all previously identified by experts, submitted to the most used free apps:

Two important details matter more than these rankings.

First, the sample: these photos were of wild flora, photographed outdoors. There is no "houseplant" category in this study, or any other published study to date. None of these percentages were measured using a Monstera in a living room, and anyone presenting these numbers as your expected accuracy at home is misrepresenting the data.

Second, Seek was built for a different purpose. It identifies plants, animals, fungi, insects, and amphibians using a single model. An app that has to tell a beetle apart from a fern is dealing with a much larger database than an app focused solely on plants, which naturally lowers its specific accuracy. The study itself proves this: the top two performers are plant-only identifiers.

If you want to see how other popular apps performed under the same testing conditions, you can read our reviews of PlantNet, which was featured in this study, and Google Lens, which was also tested there.

Why Your Houseplants Are a Worst-Case Scenario

iNaturalist is a citizen science network about wild nature. An observation of an organism cultivated or kept by people is classified as "Casual" and leaves the queue that human identifiers review. The official list of examples of "cultivated" includes, in these exact words, "poppy in a garden", "tree planted by humans 1, 10, or 100 years ago", and "plants that grew from planted seeds" (iNaturalist Help, accessed on 08/22/2026).

Your potted houseplant fits this description perfectly. This means it will never receive a Research Grade badge, which is the best feature iNaturalist has to offer. You are left with just the machine guess, which any other app can do, without the human review that makes this platform unique.

There is also an automatic voting system that flags your observation as cultivated without anyone even looking at it. The system does this when there are 10 or more observations of that plant group in your local county or region and 80% or more of them have already been marked as cultivated. In any major city, almost every common apartment plant has already crossed this threshold. Your potted pothos will be flagged as cultivated before a single human ever sees the photo.

The help text itself explains the filter: it exists because "people post many observations of pets, houseplants, and other captive or cultivated organisms," and this prevents these observations from flooding identifiers with records that the platform, in its own words, "tolerates, but does not encourage" (iNaturalist Help, accessed on 08/22/2026).

This is simply the stated scope of the platform, not a bug. However, most people who download a plant identification app are trying to identify a plant they bought for their home, which puts them entirely outside of that scope.

What Happens to the Photos You Upload

On iNaturalist, the photo you publish becomes a public record. It appears on the platform's map with the date and approximate location, remains visible to anyone, and, if it reaches the Research Grade status and is licensed for reuse, it is shared weekly with GBIF and becomes citable in scientific publications.

This is fantastic if your goal is to contribute to global biodiversity data. It is the reason the platform exists, and why millions of people use it.

It is less comfortable if you just wanted to know the name of the living room plant and did not think about publishing the interior of your house and the region where you live on an open map. It is worth knowing before you post, not after.

You have two options. First, you can use Seek, which never publishes anything. Second, you can adjust the location privacy settings of your observation directly in the app before you upload.

iNaturalist and Bloom: Built for Different Goals

Both apps identify plants from photos, but that is where the similarities end. One is a citizen science network for wild nature. The other is an app designed for people who want to keep their houseplants alive.

Three lines in that table are clear advantages for our competitors, and we want to be honest about them.

First, platform availability. iNaturalist runs on iOS, Android, and web browsers, while Bloom is currently iOS-only. If you use an Android device, the comparison ends here.

Second, pricing. iNaturalist is completely free and unlimited, forever. Bloom has a free version, which is more than most competitors offer, but unlimited identifications and disease diagnostics require a Premium subscription.

Third, human verification. No one except iNaturalist has real experts reviewing your plant photos. Bloom does not do this, and neither does any other automated identifier.

And the accuracy line is not a scoreboard. Seek's 65.6% and Plant.id's 93% come from independent tests, but from different tests, with different photos and different floras. No one put both in the same sample. Plant.id was the first-place finisher among nine apps in another study, by Jones (2020), in which Seek was not included.

Finally, finding out the name of your plant satisfies your curiosity, but it does not save the plant. If you are dealing with yellowing leaves, brown spots, or have no idea how much water your plant needs, identification is only the first step. Bloom identifies the plant, and with a Premium subscription, diagnoses diseases from photos of symptoms and builds a customized care routine.

When to Use iNaturalist (And When to Skip It)

Use iNaturalist if:

• the plant is growing wild in a forest, park, trail, or vacant lot;

• you want human experts to confirm the name and do not mind waiting a few days;

• you want to contribute to global biodiversity data, which is the platform's core mission;

• you are on Android or prefer using a web browser;

• you also want to identify animals, fungi, and insects alongside plants.

Use Seek if:

• you want an instant identification with no account and no public posting;

• you are exploring nature with kids and want a fun, interactive tool;

• you do not want your location on a public map.

Neither app works well if:

• the plant is in a pot inside your home, because it will be flagged as "Casual" and ignored by reviewers;

• your issue is not the plant's name, but the mysterious spots on its leaves, as neither app diagnoses plant diseases, and the apps that do are quite different;

• you want to know how to care for the plant next, as neither app provides customized care schedules.

Frequently Asked Questions

Can iNaturalist identify plants?

Yes. It provides an instant AI suggestion, and if the plant is wild, a community of human volunteers will eventually confirm or correct the name. For cultivated houseplants, you will only get the automatic AI suggestion, as the community does not review them.

Which iNaturalist app identifies plants instantly?

Seek by iNaturalist. You simply point your camera and it identifies the plant on your screen, with no account required and no public posting. The main iNaturalist app also gives an instant suggestion, but its primary focus is publishing the photo for the community to verify later.

Is iNaturalist free?

Yes, all three apps are completely free, with no ads or paid plans. The platform is run by a non-profit organization. In exchange, the observations you publish become public biodiversity data, complete with photos, dates, and approximate locations.

Is there a free app to identify plants?

Yes, several. Seek and iNaturalist are entirely free with unlimited uses. Bloom offers a free tier that includes 2 identifications per month and a watering schedule. If you want unlimited free identifications with zero cost, Seek is your best option.

What is the best app for identifying plants?

It depends on where the plant is. For wild plants outdoors, iNaturalist is unmatched due to its human verification system. For indoor houseplants, dedicated plant care apps are more accurate and tell you exactly how to care for them. We compared the leading options side-by-side.

Conclusion

If you find a plant out in the wild, download iNaturalist and wait for the community to verify it, there is simply nothing better, and it is completely free. If you just want a quick name without creating an account or posting anything publicly, Seek will give you an answer in seconds. But if the plant is sitting in a pot in your living room, remember that both apps will only give you an unverified AI guess, since cultivated plants are exactly what this platform asks you not to post.

In that case, your next step is not just finding the name, it is figuring out what is wrong with your plant and how to fix it. That is exactly where Bloom comes in: it identifies plants using the Plant.id engine, which boasts 93% accuracy in independent tests, offers a free tier with 2 identifications per month, and diagnoses diseases from photos of symptoms while building watering and lighting schedules in its Premium version. It is iOS-only, with a 4.8 rating and over 1,000 reviews.