P21
CAVES BOOKS LTD. Education iPhoneiPadiPod touch
P21 is a free Education app for iPhone and iPad by CAVES BOOKS LTD. Rated 5.0/5 from 1 ratings. Requires iOS 11.0. Updated February 4, 2026.
- Rating
- 5.0
- 1 ratings
- Price
- Free
- on the App Store
- Size
- 226 MB
- Age 4+
- Updated
- Feb 4
- 2026 · v1.48
Screenshots
About P21
P21 is a four-level phonics series for young learners. With the P21 App, you can listen to audio tracks from the P21 student books, watch videos in each unit, review keywords with flashcards, and play interesting phonics games. It contains all of the resources you need when learning phonics using the P21 series. Through the P21 series, children are able to build solid foundations in phonological awareness, oral language, phonics, reading, and spelling. The Alphabet, Short Vowels and Special Letters, Long Vowels and Blends, and Controlled Vowels and Digraphs are covered in the series. With P21 and the P21 App, your 21st century kids will become experts in the sounds of English.
What’s new
Version 1.48 · Updated February 4, 2026
bug fix
App privacy
The developer, CAVES BOOKS LTD., 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:
- Contact Info: Email Address
Used for: App Functionality
Alternatives to P21
Looking for apps like P21? Here are 6 similar apps on the App Store. The highest rated is Smart Phonics 3rd 4 (3.0/5), and all 6 are free to download.
-
Spotlight on Phonics
-
Smart Phonics 3rd 5
-
Sunshine Phonics
-
Smart Phonics 3rd 4
3.0
-
Smart Phonics 3rd 3
-
School Phonics
1.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| P21 | 5.0 / 5 (1 rating) | Free | February 4, 2026 | |
| Spotlight on Phonics | – | Free | Jun 11, 2026 | Compare |
| Smart Phonics 3rd 5 | – | Free | Dec 1, 2023 | Compare |
| Sunshine Phonics | – | Free | Jul 31, 2025 | Compare |
| Smart Phonics 3rd 4 | 3.0 / 5 (1) | Free | Feb 4, 2025 | Compare |
| Smart Phonics 3rd 3 | – | Free | Dec 1, 2023 | Compare |
| School Phonics | 1.0 / 5 (1) | Free | Sep 26, 2024 | Compare |
Compare P21 with the top alternatives: ratings, updates, ASO score and keyword gaps →