P21 vs RobotMake
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.
RobotMake
This app allows users to control robots using programmable blocks. It offers guided assembly and installation tutorials for mechanical and robot components, enabling users to create custom robot movements and actions.
- Robot control (forward, backward, turn)
- Block assembly and installation tutorials
- Blockly programming interface
- Progress tracking for assembly
- Mechanical Master block programming
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This is software of program blocks “Mechanical Master” and “Robot Master”, it can be used for controlling program blocks. The function of Mechanical Master: 1. Assembling and installing blocks teaching. The function of Robot Master as the blew: 1. Control robot go forward, backward, turn left and turn right. 2. Show the progress of assembling and installing blocks 3. Use Blockly edit program to control robot.
Screenshots
Verdict
The clearest difference is rating: P21 at 5.0 against RobotMake's 1.8. RobotMake's advantage is ratings volume (4 vs 1). On price, update cadence, ads and in-app purchases 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.
P21 holds the better App Store score, 5.0 against 1.8. Both are backed by a comparable volume of ratings — 1 and 4 respectively.
P21 ships an update every 6 weeks, RobotMake every 3 weeks. The most recent releases landed on July 6, 2026 and June 4, 2026 respectively.
| Parameter | P21 | RobotMake |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 1.8 (4 ratings) |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 6 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 226 MB | 125 MB |
| Age rating | 4+ | 4+ |
| Developer | CAVES BOOKS LTD. | Guangzhou Tudao Information Technology Co., Ltd. |
Customer experience
P21
RobotMake
In-app purchases
P21
No in-app purchases
RobotMake
No in-app purchases
