P21 vs Smart Phonics Readers1
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
P21
This educational app supports a four-level phonics series for young learners. It offers audio tracks, videos, flashcards, and games to help children build foundational skills in phonological awareness, reading, and spelling.
- Audio tracks from student books
- Educational videos
- Keyword flashcards
- Phonics games
- Progress tracking
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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.
Smart Phonics Readers1
This educational app complements a phonics reading series with interactive digital content. It features animations, audio, flashcards, and word games to help young learners review phonics rules through engaging stories. The content is designed to be level-appropriate and fun.
- Animations
- Audio tracks
- Flashcards
- Word games
- Phonics rule review
- Interactive stories
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The Smart Phonics Readers App is designed to be used along with the Smart Phonics Readers series. The app contains various digital contents such as animations, audio tracks, flashcards, and word games. Smart Phonics Readers is a five-level phonics readers series made in company with Smart Phonics. The series is designed to make students review phonics rules through fun stories. Each story contains entertaining topics, vivid illustrations, and level-appropriate words and sentence structures.
Screenshots
Verdict
The clearest difference is update cadence: Smart Phonics Readers1 at fortnightly against P21's every 6 weeks. On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for P21 against 5.0 for Smart Phonics Readers1. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
P21 ships an update every 6 weeks, Smart Phonics Readers1 fortnightly. The most recent releases landed on September 28, 2026 and October 24, 2026 respectively.
| Parameter | P21 | Smart Phonics Readers1 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 80.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 6 weeks | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 226 MB | 655 MB |
| Age rating | 4+ | 4+ |
| Developer | CAVES BOOKS LTD. | e-future Co., Ltd. |
Customer experience
P21
Smart Phonics Readers1
In-app purchases
P21
No in-app purchases
Smart Phonics Readers1
No in-app purchases
Questions
Is P21 free?
Is Smart Phonics Readers1 free?
Which has better reviews, P21 or Smart Phonics Readers1?
Do P21 or Smart Phonics Readers1 have ads?
Which is updated more often, P21 or Smart Phonics Readers1?
Other comparisons
