# Which hand ?? vs Mono

The clearest difference is rating: Mono at 5.0 against Which hand ??'s 2.8. Mono also leads on update cadence (every 4 days vs fortnightly). Which hand ??'s advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, 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.

Mono holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.

Which hand ?? ships an update fortnightly, Mono every 4 days. The most recent releases landed on October 11, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Which hand ?? | Mono |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/which-hand/id1437518328/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mono-puzzles/id6475032746/reviews)** |
| Number of ratings | **4** | 1 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | **Free** | Ad-supported |
| Size | 26 MB | 32 MB |
| Requires iOS | **11.4** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomohiro Yamashita](https://appshunter.io/developer/658724298) | [Tomohiro Ichiba](https://appshunter.io/developer/1686104527) |

## 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


### Mono

[App page](https://appshunter.io/ios/app/mono-puzzles/id6475032746)

A minimalist puzzle game where players aim to reduce the number of stones on a board to a single one. Stones can jump over adjacent stones, removing the jumped stone. This strategic elimination continues until only one stone remains.

**Highlights:** Single stone objective, Jump over stones to eliminate, Vertical and horizontal jumps, Minimalist design, Brain-training gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Which hand ?? free?

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

### Is Mono free?

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

### Which has better reviews, Which hand ?? or Mono?

Mono is rated higher. Which hand ?? averages 2.8 out of 5 from 4 ratings, while Mono averages 5.0 from 1 ratings.

### Do Which hand ?? or Mono have ads?

Mono shows ads; Which hand ?? does not.

### Which is updated more often, Which hand ?? or Mono?

Which hand ?? ships an update fortnightly, and Mono every 4 days. Most recently, Which hand ?? was updated on October 11, 2026 and Mono on October 20, 2026.

---

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