# Which hand ?? vs Math Stan

The clearest difference is rating: Math Stan at 5.0 against Which hand ??'s 2.8. Math Stan also leads on update cadence (every 5 days vs fortnightly). Which hand ??'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Math Stan holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Which hand ?? ships an update fortnightly, Math Stan every 5 days. The most recent releases landed on September 25, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Which hand ?? | Math Stan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/which-hand/id1437518328/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/math-stan-quick-maths-contest/id6468938119/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 5 days** |
| Monetization | **Free** | Ad-supported |
| Size | 26 MB | 78 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomohiro Yamashita](https://appshunter.io/developer/658724298) | [deLily Apps, Inc.](https://appshunter.io/developer/1435796745) |

## What reviewers say

### Which hand ??

[App page](https://appshunter.io/ios/app/which-hand/id1437518328)

A simple game designed to test your reaction time and cognitive skills. Players must quickly select the correct hand shown on the screen. It's a straightforward challenge for quick thinking.

**Highlights:** Quick reaction test, Hand selection gameplay, Brain training challenge, Simple interface

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

**In-app purchases:** none


### Math Stan

[App page](https://appshunter.io/ios/app/math-stan-quick-maths-contest/id6468938119)

Test your math speed in a timed competition against players worldwide. Answer as many questions as possible in 15 seconds, but beware of point deductions for incorrect answers. Climb the international leaderboard to prove you're the top genius.

**Highlights:** Timed math challenges, Global leaderboard, Point deduction for errors, Fast-paced gameplay, Competitive math testing

**In-app purchases:** none


## Frequently asked questions

### Is Which hand ?? free?

Which hand ?? is free to download, with no in-app purchases.

### Is Math Stan free?

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

### Which has better reviews, Which hand ?? or Math Stan?

Math Stan is rated higher. Which hand ?? averages 2.8 out of 5 from 4 ratings, while Math Stan averages 5.0 from 2 ratings.

### Do Which hand ?? or Math Stan have ads?

Math Stan shows ads; Which hand ?? does not.

### Which is updated more often, Which hand ?? or Math Stan?

Which hand ?? ships an update fortnightly, and Math Stan every 5 days. Most recently, Which hand ?? was updated on September 25, 2026 and Math Stan on October 8, 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.*