# P21 vs RobotMake

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.

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.

## The numbers

| Metric | P21 | RobotMake |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/p21/id1453823561/reviews)** | [1.8 (4 ratings)](https://appshunter.io/ios/app/robotmake/id1525516513/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 226 MB | 125 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CAVES BOOKS LTD.](https://appshunter.io/developer/547924599) | [Guangzhou Tudao Information Technology Co., Ltd.](https://appshunter.io/developer/1228572324) |

## What reviewers say

### P21

[App page](https://appshunter.io/ios/app/p21/id1453823561)

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.

**Highlights:** Audio tracks from student books, Educational videos, Keyword flashcards, Phonics games, Progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### RobotMake

[App page](https://appshunter.io/ios/app/robotmake/id1525516513)

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.

**Highlights:** Robot control (forward, backward, turn), Block assembly and installation tutorials, Blockly programming interface, Progress tracking for assembly, Mechanical Master block programming

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is P21 free?

P21 is free to download, with no in-app purchases.

### Is RobotMake free?

RobotMake is free to download, with no in-app purchases.

### Which has better reviews, P21 or RobotMake?

P21 is rated higher. P21 averages 5.0 out of 5 from 1 ratings, while RobotMake averages 1.8 from 4 ratings.

### Do P21 or RobotMake have ads?

Neither P21 nor RobotMake shows ads.

### Which is updated more often, P21 or RobotMake?

P21 ships an update every 6 weeks, and RobotMake every 3 weeks. Most recently, P21 was updated on July 6, 2026 and RobotMake on June 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*