R21 vs Top Phonics
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
R21
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R21 is a new six-level reading series carefully designed to help young learners develop the skills theyβll need to succeed in the 21st century. Each book covers a range of topics and makes use of the latest Content and Language Integrated Learning (CLIL) methods to ensure theyβll appeal to young children and have a connection to childrenβs wider studies and experiences. With R21, reading is fun, inspiring as well as informative, and children will not only develop their reading competence but also become a great thinker in the 21st century.
Top Phonics
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Top Phonics is an easy-to-use five-level phonics app developed for young learners of English. Students will learn to recognize and say the letters of the English alphabet. In the end, they will be able to read stories as well as words. This app provides a guided, step-by-step presentation of single-letter sounds and vowel and consonant combination. Features: - Entertaining chants and songs to provide listening and pronunciation practice. - Fun stories to develop reading skills. - Vocabulary acquisition through Flashcards - Reinforcing the words and sounds through Practice - Test that will help check up what students have learned
Screenshots
Verdict
The clearest difference is update cadence: R21 at every 3 months against Top Phonics's every 19 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
R21 ships an update every 3 months, Top Phonics every 19 months. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.
| Parameter | R21 | Top Phonics |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months β better | Every 19 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 | 9.0 |
| Further details β not scored | ||
| Size | 114 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | CAVES BOOKS LTD. | Seed Learning, Inc |
In-app purchases
R21
No in-app purchases
Top Phonics
No in-app purchases









