# Dozen vs Janken

The clearest difference is ads: Dozen at none against Janken's shown. Janken's advantage is iOS requirement (11.0 vs 15.0). On price, update cadence, 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.

Dozen ships an update every 5 months, Janken every 6 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Dozen | Janken |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21 ratings)](https://appshunter.io/ios/app/dozen-memory-game/id1520158240/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 96.6% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Free | — |
| Size | 29 MB | 165 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Igor Fedorov](https://appshunter.io/developer/1520158242) | [Takumi Seki](https://appshunter.io/developer/1546622179) |

## What reviewers say

### Dozen

[App page](https://appshunter.io/ios/app/dozen-memory-game/id1520158240)

A challenging memory card game where you compete against your iPhone to test and improve your memorization skills. Flip cards, match pairs, and score points before the device outmaneuvers you. Engage in fast-paced, addictive gameplay anytime, anywhere.

**Highlights:** Memory card game, Compete against iPhone, Memorize card locations, Score pairing points, Fast-paced gameplay, Sharpen memory

**Features:** macOS Compatibility

**In-app purchases:** none


### Janken

[App page](https://appshunter.io/ios/app/janken-shot/id1546622177)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dozen free?

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

### Is Janken free?

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

### Do Dozen or Janken have ads?

Janken shows ads; Dozen does not.

### Which is updated more often, Dozen or Janken?

Dozen ships an update every 5 months, and Janken every 6 months. Most recently, Dozen was updated on November 3, 2026 and Janken on November 3, 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.*