# Field Notebook: Seashore — Shells & sea life from a photo

> Shells & sea life from a photo (iPhone/iPad app by AKIHIRO MATSUYAMA.)

- Source: https://appshunter.io/ios/app/field-notebook-seashore/id6810399341 (this page in markdown: same URL + `.md`)
- Developer: [AKIHIRO MATSUYAMA](https://appshunter.io/developer/6789115438)
- Category: Education, Reference
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 121 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish, Vietnamese
- Released: 2026-09-14
- Data updated: 2026-10-18

## What is Field Notebook?

From a shell picked up on the beach to a whale or shark you saw at the aquarium. Switch between volumes, and on-device AI suggests the closest matches from your photo and saves them to your guide.

TWO VOLUMES
- Shells: write-ups for 114 species of shells, land snails from around the world, crabs, sea slugs and tide-pool life. 63 of them can be identified from a photo.
- Sea Creatures: 81 species including whales, dolphins, sharks, crabs, hermit crabs, sea slugs, sea stars, sea cucumbers and seaweed.
The guide, photo ID, quiz and your records switch with each volume.

NO FALSE CONFIDENCE
- Up to three candidates, never one flat answer.
- Each one comes with a confidence level (close match / similar / possibly similar).
- When confidence is low, no candidates are shown and the app says the photo may be outside this guide.
- The same photo always gives the same answer.
Results are an observation reference, not a definite identification.

READ IT WITHOUT A CAMERA
Every write-up is original: appearance, how to tell lookalikes apart, habits, a fun fact and observation tips, each with a cited source. Reading the guide is free.

STAY SAFE
Do not take protected or living creatures home without checking local rules. Do not touch spiny or toothed animals with bare hands; watch from a little distance.

NO SERVER, NO RUNNING COSTS
Recognition runs entirely on your device. Photos and records stay on this device only. No account, no ads.

PRICING
The app is free. Photo ID is unlimited for the first 7 days, then free up to 3 times a day.
A one-time purchase per volume unlocks unlimited photo ID, unlimited quiz, a map of your finds, CSV export of your records, and photo tips and observation hints (no ads). The Seashore all-volumes pack opens every volume in this guide, including volumes added later, at no extra cost.
No subscription. If you bought the earlier AI Shell Guide, both the Shells and Sea Creatures volumes are already unlocked. Use "Restore purchases" when you change devices.

ABOUT THE TRAINING DATA
The recognition AI was trained on photos shared under CC0, CC BY or public domain terms. Photographer names and sources are listed under Settings in the app.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium (One-Time) | $0.99 | one-time |


## Is Field Notebook safe?

Not enough ratings yet to assess Field Notebook.

## Is Field Notebook legit?

Field Notebook: Seashore appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Field Notebook is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 2.0.0 — 2026-10-09

New in 2.0: switch between volumes. Flip between Shells and Sea Creatures inside one guide; the guide, photo ID, quiz and records follow the volume you pick. Buy per volume or get the all-volumes pack. If you bought the earlier AI Shell Guide, both volumes are already unlocked.

### 1.0.4 — 2026-09-24

• Minor display and stability improvements

### 1.0.3 — 2026-09-21

• VoiceOver now describes photos and candidate names
• Layouts stay intact with larger text sizes
• You can now choose the app language in Settings

### 1.0.1 — 2026-09-15

• Improved how identification results are shown (fewer cases where an out-of-scope photo is called “a strong match”)
• Fixed an issue that could make the app unstable at startup

### 1.0.0 — 2026-09-14

No release notes.

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All apps by AKIHIRO MATSUYAMA: https://appshunter.io/developer/6789115438

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-18.*