Critterbook
Altai Ventures LLC Education iPhoneiPadiPod touch
Critterbook is a free Education app for iPhone and iPad by Altai Ventures LLC. Requires iOS 17.0. Updated September 18, 2026.
- Price
- Free
- on the App Store
- Size
- 257 MB
- Age 4+
- Updated
- Sep 18
- 2026 · v1.5.2
Screenshots
About Critterbook
Critterbook is a painted field guide to the creatures your family actually meets: the isopods in the terrarium, the orb weaver by the porch light, the frog at the pond. Every one of its 36 creatures is a hand-finished painted plate on warm paper. Snakes, poison frogs, isopods, and the backyard visitors kids find on their own. Tap a plate for its vitals, its story, and the kind of fact a child repeats at dinner. POINT THE BUG LENS Found something? Look at it through the Bug Lens. Identification happens entirely on your phone; the photo never leaves the device. When Critterbook recognizes a creature from its guide, it suggests a match honestly ("Looks like a ladybug!") and never gives a confident wrong answer. FILL YOUR JOURNAL Every creature you find gets pressed into your Journal, a collection wall that starts as 36 ghosts and fills with color as your family finds them. Two ways to collect: scan one with the Bug Lens, or mark it seen in person. NOMINATE NEW CREATURES Found something the guide doesn't know? Nominate it. New plates are painted and added to the guide over time. MADE FOR FAMILIES - Free. No ads, no accounts, no purchases. - Private by design: everything happens on your device. - Works offline, in the yard, at the park, off the grid. Critterbook is painted, not photographed. A field journal your family fills together.
What’s new
Version 1.5.2 · Updated September 18, 2026
Behind-the-scenes improvements.
App privacy
The developer, Altai Ventures LLC, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- User Content: Other User Content
- Identifiers: User ID
Used for: Analytics, App Functionality
Alternatives to Critterbook
Looking for apps like Critterbook? Here are 6 similar apps on the App Store. The highest rated is First Words for Toddlers: Tofu (5.0/5), and all 6 are free to download.
-
自分だけの図鑑を作ろう!
-
Whatty! My AI Buddy for Kids
1.7
-
植物・昆虫なあに? - タッチ図鑑シリーズ
-
First Words for Toddlers: Tofu
5.0
-
iAnimal: Animal Identifier AI
3.8
-
alphaXiv
4.7
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Critterbook | – | Free | September 18, 2026 | |
| 自分だけの図鑑を作ろう! | – | Free | Mar 30, 2026 | Compare |
| Whatty! My AI Buddy for Kids | 1.7 / 5 (3) | Free | Aug 12, 2024 | Compare |
| 植物・昆虫なあに? - タッチ図鑑シリーズ | – | Free | Dec 4, 2025 | Compare |
| First Words for Toddlers: Tofu | 5.0 / 5 (2) | Free | Aug 29, 2026 | Compare |
| iAnimal: Animal Identifier AI | 3.8 / 5 (185) | Free | Jun 15, 2026 | Compare |
| alphaXiv | 4.7 / 5 (17) | Free | Oct 16, 2026 | Compare |
Compare Critterbook with the top alternatives: ratings, updates, ASO score and keyword gaps →