# Dark Math vs Fruitlight Doku

The clearest difference is ads: Fruitlight Doku at none against Dark Math's shown. Dark Math's advantage is iOS requirement (13.0 vs 17.0). 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.

Dark Math ships an update every 4 days, Fruitlight Doku every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Dark Math | Fruitlight Doku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/dark-math-math-puzzle-game/id6738501626/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 175 MB | 135 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Redev Inc.](https://appshunter.io/developer/1658921539) | [贵权 陈](https://appshunter.io/developer/6809852956) |

## What reviewers say

### Dark Math

[App page](https://appshunter.io/ios/app/dark-math-math-puzzle-game/id6738501626)

A challenging math puzzle game designed to sharpen your logic and reasoning skills. Place number cards to solve equations, from simple to highly complex, with difficulty that scales to push your limits.

**Highlights:** Logic and reasoning training, Diverse difficulty levels, Equation solving puzzles, Number card placement gameplay, Suitable for all ages

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

**In-app purchases:** none


### Fruitlight Doku

[App page](https://appshunter.io/ios/app/fruitlight-doku/id6813927466)

**In-app purchases:** none


## Frequently asked questions

### Is Dark Math free?

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

### Is Fruitlight Doku free?

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

### Do Dark Math or Fruitlight Doku have ads?

Dark Math shows ads; Fruitlight Doku does not.

### Which is updated more often, Dark Math or Fruitlight Doku?

Dark Math ships an update every 4 days, and Fruitlight Doku every 3 days. Most recently, Dark Math was updated on November 4, 2026 and Fruitlight Doku on October 31, 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.*