# Mental Abacus Book 3 vs Arduino Programming Pro

The clearest difference is update cadence: Arduino Programming Pro at every 6 weeks against Mental Abacus Book 3's every 20 months. Arduino Programming Pro also leads on price ($4.99 vs $8.99) and chart position (#122 vs unranked). Mental Abacus Book 3's advantage is iOS requirement (8.0 vs 16.0). On ads, in-app purchases and device support there is nothing between them.

Mental Abacus Book 3 costs $8.99 and Arduino Programming Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Mental Abacus Book 3 ships an update every 20 months, Arduino Programming Pro every 6 weeks. The most recent releases landed on September 14, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Mental Abacus Book 3 | Arduino Programming Pro |
| --- | --- | --- |
| Price | $8.99 | **$4.99** |
| Rating | — | **[4.6 (5 ratings)](https://appshunter.io/ios/app/arduino-programming-pro/id6447102673/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 6 weeks** |
| Monetization | — | Paid |
| Best chart rank | — | **#122** |
| Size | 13 MB | 45 MB |
| Requires iOS | **8.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Hamster Force Multimedia Ltd.](https://appshunter.io/developer/443416476) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Mental Abacus Book 3

[App page](https://appshunter.io/ios/app/mental-abacus-book-3/id1054868136)

**Features:** macOS Compatibility

**In-app purchases:** none


### Arduino Programming Pro

[App page](https://appshunter.io/ios/app/arduino-programming-pro/id6447102673)

**Currently charting:** #122 Top Paid · Education (US App Store)

Master Arduino programming with over 200 practical lessons, circuit diagrams, and code examples. This app guides beginners and experienced users through electronics and project building in 14 languages. The Pro version offers advanced features for enhanced learning.

**Highlights:** 200+ practical lessons, Circuit diagrams and wiring guides, Ready-to-use code examples, Interactive quiz questions, Support for 14 languages, Full-text search (Pro version), Favorites for saving topics (Pro version)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Mental Abacus Book 3 free?

Mental Abacus Book 3 costs $8.99, with no in-app purchases.

### Is Arduino Programming Pro free?

Arduino Programming Pro costs $4.99, with no in-app purchases.

### Do Mental Abacus Book 3 or Arduino Programming Pro have ads?

Neither Mental Abacus Book 3 nor Arduino Programming Pro shows ads.

### Which is updated more often, Mental Abacus Book 3 or Arduino Programming Pro?

Mental Abacus Book 3 ships an update every 20 months, and Arduino Programming Pro every 6 weeks. Most recently, Mental Abacus Book 3 was updated on September 14, 2026 and Arduino Programming Pro on September 24, 2026.

---

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