# Hands vs C2 Stroop Task

The clearest difference is update cadence: C2 Stroop Task at every 10 months against Hands's every 27 months. C2 Stroop Task also leads on device support (3 vs 1). Hands's advantage is price ($2.99 vs $3.99) and iOS requirement (12.0 vs 15.6). On ads and in-app purchases there is nothing between them.

Hands costs $2.99 and C2 Stroop Task $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Hands ships an update every 27 months, C2 Stroop Task every 10 months. The most recent releases landed on June 2, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Hands | C2 Stroop Task |
| --- | --- | --- |
| Price | **$2.99** | $3.99 |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/hands-on-math-attribute-blocks/id504609803/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 10 months** |
| Monetization | Paid | — |
| Size | 13 MB | 1 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ventura Educational Systems](https://appshunter.io/developer/371324172) | [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) |

## What reviewers say

### Hands

[App page](https://appshunter.io/ios/app/hands-on-math-attribute-blocks/id504609803)

This app offers an interactive way to learn math concepts like set theory, geometry, and logic. It features 8 levels of difficulty, presenting students with challenges to solve using attribute blocks and logical reasoning. It's designed to improve basic math skills and logical thinking for elementary students.

**Highlights:** Interactive math concept learning, Set theory, geometry, number theory, logic, 8 levels of difficulty, Logical problem-solving challenges, Venn diagram exercises, Shape and pattern recognition

**Features:** macOS Compatibility

**In-app purchases:** none


### C2 Stroop Task

[App page](https://appshunter.io/ios/app/c2-stroop-task/id1638265933)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Hands free?

Hands costs $2.99, with no in-app purchases.

### Is C2 Stroop Task free?

C2 Stroop Task costs $3.99, with no in-app purchases.

### Do Hands or C2 Stroop Task have ads?

Neither Hands nor C2 Stroop Task shows ads.

### Which is updated more often, Hands or C2 Stroop Task?

Hands ships an update every 27 months, and C2 Stroop Task every 10 months. Most recently, Hands was updated on June 2, 2026 and C2 Stroop Task on September 24, 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.*