AI Shell & Snail Identifier
76 finds, every one IDable
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A hollow in the rock after the tide goes out, and the garden wall after rain.
Almost everything in this guide lives in one of those two places.
SEVENTY-SIX, AND EVERY ONE OF THEM CAN BE LOOKED UP FROM A PHOTO
Shells: 16 (Ruditapes, Haliotis, Conus, Turbo and others)
Land snails and slugs of the world: 28 (Achatina, the large European snails and others)
Tide-pool hermit crabs, sea stars and urchins: 14 (Coenobita, Linckia, Pseudocentrotus and others)
Crabs: 9 (Chiromantes, Portunus, Geothelphusa and others)
Sea slugs and sea hares: 9 (Hypselodoris, Aplysia and others)
Most guide apps end up with a long catalogue and a short list of things the camera can actually handle. Here the two numbers are the same. Nothing is in the book purely as decoration.
NAMES GO AS FAR AS THE GENUS
A sea snail or a garden snail usually cannot be taken down to species from one photo, so the answer stops at the genus. At most three candidates, each with one of three words: very similar, similar, or possibly similar. When it cannot be confident it stays quiet. Photograph something outside the 76 and it is not nudged toward the nearest match.
BEFORE YOU TAKE ANYTHING HOME
Even shells and snails are protected by local rules in some places. Please check the rules where you are before taking anything away.
Do not touch spined animals or anything that might be venomous; watch and photograph from a distance. This app does not judge whether something is dangerous.
WHAT THIS GUIDE WILL NOT ANSWER
Whether something is edible, what to do after a sting, what a shell is worth. None of it.
SIX THINGS THE ONE-TIME PURCHASE OPENS
1 Unlimited AI checks (now 3 a day, unlimited for the first 7 days after install)
2 Unlimited daily quiz (now 3 questions a day)
3 Open your finds on a map (closed for now)
4 Export your records as CSV (closed for now)
5 Photo tips and observation notes for all 76 entries (closed for now)
6 Your records stay fully visible even if you never buy. We do not hide them and we do not delete them.
No monthly fee, no auto-renewal. The exact amount is confirmed on the App Store purchase screen.
All 76 write-ups were written from scratch: the look, how to tell it apart, how it lives, one small fact and what to be careful of while watching, with sources named (Japanese and English Wikipedia). They read perfectly well on a day you take no photos.
Recognition runs inside the device. Photos and records never leave it. No account, no ads, and it works on a shoreline with barely any signal.
From SAKURA PRODUCTS
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Minor display and stability improvements
The developer, AKIHIRO MATSUYAMA, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- AKIHIRO MATSUYAMA
- Size
- 68.4 MB
- Category
- Education
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium (One-Time) $0.99
- Copyright
- © 2026 SAKURA PRODUCTS