BeachNut vs Seek — beach finds or all of nature

Seek by iNaturalist is for exploring plants, animals and fungi. BeachNut focuses on Florida beach finds and planning a beach visit. Which fits your day depends on what you want to learn—not on a claim that one app wins every identification.

This comparison is written by BeachNut. It describes features and intended uses, not the results of an independent accuracy test. Product information was checked October 13, 2026.

What Seek offers

Seek's official description emphasizes wildlife, plants and fungi, with badges and observation challenges. Its camera identification works on the device without an internet connection. You can use it without creating an account.

Privacy has an important qualification: iNaturalist says no personally identifiable information is collected from users who do not log in. Eligible users can optionally sign in and submit observations to iNaturalist. So “no account required” is accurate; “nothing ever uploads” is not. Parents should review the settings and optional sharing before a family outing.

Seek's instant result is generated by its identification model. It is not automatically a community-reviewed identification. For that distinction, see our iNaturalist comparison.

What BeachNut offers

BeachNut brings together photo identification for shells, shark teeth, fossils, sea glass, sea beans and beach pottery; a field guide; Florida beach information; conditions and scores; and a collection for recording finds.

Photo results are ranked possibilities with confidence information and guide links, not expert authentication. Compare the visible features yourself and keep uncertain identifications tentative. Read how BeachNut photo ID works before relying on a result.

Beach scores are planning aids—not a promise of finds, a water-safety clearance or permission to collect. On-site warnings and the land manager's current rules still matter.

Common questions

Can Seek identify shells and shark teeth?

Seek's official materials focus on organisms. That description alone does not prove it cannot identify an empty shell, and we have not established its performance on shell fragments or fossil teeth. BeachNut explicitly includes those beach-find categories; that is a difference in focus, not proof of greater accuracy.

Does Seek work offline?

Its on-device camera identification does. Optional online sharing is a separate feature; an offline identification is not an expert verification.

Are the apps free?

Seek is listed as free. BeachNut offers free beach and field-guide browsing, and free accounts receive three new photo identifications a day. Premium adds unlimited identification, the seven-day outlook and multi-day trip planning. Check current BeachNut plans for the latest terms.

Which should a family use?

Seek's no-account option suits a nature walk focused on organisms. BeachNut suits a Florida beach visit focused on finds and planning. You can use both for different questions. Neither app should decide whether an unfamiliar animal is safe to touch or a place is safe to enter.