Should you use Seek or iNaturalist? Use Seek if you want a fast, private name for the bird, bug or plant in front of you, with no account and no data shared. Use iNaturalist if you want people to double-check your identification and your sighting to count as public data for scientists. Both apps are free and come from the same nonprofit, so the choice is really about what you want to happen after you take the photo. Below is a side-by-side table, the strengths of each, and a simple way to decide.
Quick verdict
- Choose Seek for kids, casual walks, privacy and places with no signal. It identifies things live through the camera and rewards you with badges.
- Choose iNaturalist for citizen science, harder identifications and keeping a public record of what you've seen. Real people review your observations.
- Use both if you like: Seek for quick checks in the field, iNaturalist for the sightings you want to share.
Seek vs iNaturalist: side-by-side comparison
Facts below come from iNaturalist's official help article on the two apps and each app's App Store listing, as of October 2026.
| Seek by iNaturalist | iNaturalist | |
|---|---|---|
| Made by | iNaturalist (nonprofit) | iNaturalist (nonprofit) |
| Price | Free, no in-app purchases listed | Free, no in-app purchases listed |
| Account | Not required | Required |
| Minimum age | Designed for kids; logging in to post needs 13+ or parental permission | 13+ for an account |
| How you identify | Live, on-screen suggestions as you point the camera | Model suggestions, then confirmed by the community |
| Works offline | Yes | Needs internet for the newest model and for posting |
| Identification model | Generally an older model | Newest released model when online |
| What happens to your data | Stays on your device unless you log in and post | Photo, location and time go into a public database |
| Location privacy | Location obscured; nothing sent unless you post | Shared with your observation (privacy settings available) |
| Extras | Badges, monthly challenges, lists of species seen nearby | Community IDs, projects, photos or sound recordings |
| Platforms | iPhone, iPad and Android | iPhone, Android and the web |
| App Store age rating | 4+ | 4+ |
One platform note: in 2025 iNaturalist released a rebuilt iPhone app, and the older iOS app became "iNaturalist Classic". On Android, the long-running app remained the main version while the rebuilt one was in closed beta, according to iNaturalist's July 2026 forum update.
Where Seek is better
Privacy and kids
Seek needs no sign-up. iNaturalist's help center says it collects no personally identifiable information from users who aren't logged in, and the App Store listing says your location is obscured. That's why many parents and teachers pick it: a child can explore a park without creating an account or posting anything publicly.
Instant feedback in the camera
Point the camera at a flower and Seek starts suggesting on screen, working through the tree of life from a broad group toward a species. It's a satisfying way to learn, because you can watch a guess go from "some kind of beetle" toward a name.
Games and goals
Seek awards badges for observing different kinds of plants, birds, fungi and other groups, and runs challenges. It also shows lists of species commonly recorded near you, which turns a walk into a scavenger hunt.
No signal, no problem
Because Seek works without an internet connection, it's handy on trails, in remote parks or abroad without data.
Where iNaturalist is better
People check your identification
This is the biggest difference. On iNaturalist, other users review your photo and add their own identifications. An observation becomes "Research Grade" when the community agrees on a species-level ID, which means more than two-thirds of identifiers agree on the taxon (iNaturalist help). An expert eye can catch mistakes that any image model makes.
Your sightings help science
Research Grade observations are shared with the Global Biodiversity Information Facility, where they appear in the iNaturalist Research-grade Observations dataset used by researchers. If you'd like your backyard frog to become a data point, iNaturalist is the app that makes that happen.
Newer model, more evidence types
When online, iNaturalist uses its most recently released model, while Seek generally runs an older one. iNaturalist also accepts sound recordings, which helps with birds, frogs and insects you can hear but not see.
A lasting record
Your observations live in your account on the website and app, so you can browse them on any device, join projects such as local bioblitzes, and see what others have found in the same spot.
Which should you choose?
Work through these five questions in order. The first one that gives a clear answer usually settles it.
1. Do you want an account?
If you'd rather not sign up for anything, choose Seek. It works the moment you open it. iNaturalist needs an account before you can post, though you can browse other people's observations without one.
2. Who will use the app?
For a child under 13, Seek is the app built for that age group, and iNaturalist accounts require users to be 13 or older. A family can still bridge the two: an adult or a teen with permission can log in from Seek and post the best finds to iNaturalist.
3. Will you have signal?
On a remote trail or abroad without data, Seek's offline identification is the safer bet. iNaturalist works best online, where it uses its newest model and can upload your observation straight away.
4. How hard is the thing you're identifying?
For a common robin or a dandelion, either app will usually do. For look-alike species, such as small brown birds, mushrooms or beetles, iNaturalist's human reviewers add a second opinion that no automatic suggestion can give you.
5. Do you want your sighting to help science?
If yes, choose iNaturalist. Only observations posted there can become Research Grade and reach datasets used by researchers. If you're just curious, Seek's private log and badges are enough.
For a family walk, Seek is the easy pick. For a serious hobby, especially birds, insects or anything hard to tell apart, iNaturalist's reviewers are worth the sign-up. Many people start with Seek and move to iNaturalist once they want more. If you're more interested in trees and plants, our PlantNet vs iNaturalist comparison looks at a different pairing.
Whichever you choose, better photos give better suggestions in both apps. Fill the frame with the animal or plant, keep it in focus, and take a few shots from different angles: the side of a bird, the top and underside of a leaf, the wings of a butterfly. Include something that shows the habitat when you can, since where you found it is a clue too. On iNaturalist, adding several photos to one observation also gives human identifiers more to work with, which can help it reach Research Grade sooner.
A safety note for any app: an automatic suggestion is a starting point, not a certain answer. Don't touch, handle or approach an animal based on what an app says. For spiders, snakes and other animals that could be dangerous, look at the features yourself, as in our guide on how to tell if a spider is a brown recluse, and ask a local expert when in doubt.
How Species ID can help
Species ID is our own iPhone app for animals. Like Seek, you point your camera or upload a photo and get an AI suggestion in seconds. Each result comes with a species profile covering diet, habitat, behavior and natural range, and every find is saved to a personal wildlife log so you can look back on what you've seen. It doesn't send your sightings to a research database or have people review them, so if contributing to science is your goal, iNaturalist is the better tool. It uses paid weekly or yearly subscriptions, while Seek and iNaturalist are free. Its suggestions are a starting point, not a guaranteed ID. See the app page for details.
Frequently asked questions
Is Seek the same as iNaturalist?
No. Both are made by the nonprofit iNaturalist and use its image-recognition models, but they do different jobs. Seek is a private, no-account app for instant identification with badges and challenges. iNaturalist is a community platform where you post observations, other people confirm the identification, and the data becomes publicly available for research.
Is Seek or iNaturalist better for kids?
Seek is designed for children. It needs no account, collects no personally identifiable information unless you log in, and obscures your location. iNaturalist requires users to be at least 13 to make an account. Users 13 and over, or younger with parental permission, can optionally log in from Seek and post to iNaturalist.
Does Seek work without internet?
Yes. According to iNaturalist's help center, Seek's data stays on your device and the app works without an internet connection. The trade-off is that Seek generally uses an older identification model than the one iNaturalist uses online, so its suggestions can be less specific.
Do Seek observations count for science?
Not on their own. Sightings in Seek stay on your phone. They only reach iNaturalist's public data if you sign in with an iNaturalist account and post them. Once posted, they can become Research Grade when more than two-thirds of identifiers agree on a species-level ID.
Which app is more accurate, Seek or iNaturalist?
iNaturalist usually gives more reliable results because it uses the newest model when online and other people review each observation. Seek's on-device suggestions are fast but rely only on the model, which is generally older. Neither app's automatic suggestion should be treated as certain, especially for anything that could be dangerous.
Do Seek and iNaturalist cost money?
No. As of October 2026, both apps are listed as free on the App Store, and neither listing shows any in-app purchases or subscriptions. Both are built and run by iNaturalist, a nonprofit, so you can try each one and keep whichever suits you.
Conclusion
Seek and iNaturalist aren't really rivals; they're two doors into the same nonprofit project. Seek is private, offline-friendly and built for kids and casual explorers who want a quick name and a badge. iNaturalist is a community where people confirm your identifications and your sightings can become research data, at the cost of creating an account at 13 or older. Pick based on what you want after the photo. For more guides on identifying wildlife, visit our wildlife identification blog.