# 数独杀 vs DailyBrain

The clearest difference is review sentiment: DailyBrain at 100% against 数独杀's 56%. DailyBrain also leads on in-app purchases (none vs 1) and ads (none vs shown). 数独杀's advantage is update cadence (every 3 days vs monthly) and iOS requirement (15.0 vs 17.0). On price and device support there is nothing between them.

Both are free to download. 数独杀 sells 1 one-off in-app purchase. DailyBrain asks for nothing beyond the download.

数独杀 ships an update every 3 days, DailyBrain monthly. The most recent releases landed on November 5, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 数独杀 | DailyBrain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/murdoku/id6791810457/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 56.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 120 MB | 2 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Yztp Technology Co., Ltd](https://appshunter.io/developer/1437368208) | [Zeek Studio LLC](https://appshunter.io/developer/1768801410) |

## What reviewers say

### 数独杀

[App page](https://appshunter.io/ios/app/murdoku/id6791810457)

Solve mysteries by finding clues in pixelated crime scenes and using logic to reconstruct events. This game combines Sudoku-style deduction with narrative-driven puzzles, allowing you to place suspects and victims correctly based on case details.

**Highlights:** Pixelated crime scene investigation, Logic-based deduction puzzles, Narrative-driven case solving, Variable grid sizes for cases, Additional castle exploration puzzles

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 数独杀VIP | $0.99 | one-time |


### DailyBrain

[App page](https://appshunter.io/ios/app/dailybrain-brain-training/id6819290396)

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

**In-app purchases:** none


## Frequently asked questions

### Is 数独杀 free?

数独杀 is free to download, with in-app purchases available.

### Is DailyBrain free?

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

### Do 数独杀 or DailyBrain have ads?

数独杀 shows ads; DailyBrain does not.

### Which is updated more often, 数独杀 or DailyBrain?

数独杀 ships an update every 3 days, and DailyBrain monthly. Most recently, 数独杀 was updated on November 5, 2026 and DailyBrain on November 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.*