# Sudoku Brain Challenge vs step2coin

The clearest difference is in-app purchases: step2coin at none against Sudoku Brain Challenge's 7. Sudoku Brain Challenge's advantage is update cadence (every 2 days vs every 2 months) and iOS requirement (6.0 vs 11.2). On price, ads and device support there is nothing between them.

Both are free to download. Sudoku Brain Challenge sells 7 one-off in-app purchases. step2coin asks for nothing beyond the download.

Sudoku Brain Challenge ships an update every 2 days, step2coin every 2 months. The most recent releases landed on November 4, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Sudoku Brain Challenge | step2coin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (8 ratings)](https://appshunter.io/ios/app/step2coin/id1527231257/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 months |
| Monetization | — | Free |
| Size | 22 MB | 44 MB |
| Requires iOS | **6.0** | 11.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Hai Tran](https://appshunter.io/developer/1170864260) | [Wing Kai Wong](https://appshunter.io/developer/1449344828) |

## What reviewers say

### Sudoku Brain Challenge

[App page](https://appshunter.io/ios/app/sudoku-brain-challenge/id1302994539)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coin Package 1 | $0.99 | one-time |
| Remove Advs | $0.99 | one-time |
| Coin Pakage 2 | $1.99 | one-time |
| Coin Package 3 | $2.99 | one-time |
| Coin Package 4 | $3.99 | one-time |
| Coin Package 5 | $4.99 | one-time |
| Coin Package 6 | $9.99 | one-time |


### step2coin

[App page](https://appshunter.io/ios/app/step2coin/id1527231257)

This fitness app tracks your exercise and rewards you with points for staying active. Earn points by walking and redeem them for sportswear, gift cards, and prizes. It integrates with your device's health data to make fitness more engaging.

**Highlights:** Exercise tracking, STEP point collection, Rewards redemption, Health app integration, Active lifestyle promotion, Gift cards and prizes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Brain Challenge free?

Sudoku Brain Challenge is free to download, with in-app purchases available.

### Is step2coin free?

step2coin is free to download, with no in-app purchases.

### Do Sudoku Brain Challenge or step2coin have ads?

Neither Sudoku Brain Challenge nor step2coin shows ads.

### Which is updated more often, Sudoku Brain Challenge or step2coin?

Sudoku Brain Challenge ships an update every 2 days, and step2coin every 2 months. Most recently, Sudoku Brain Challenge was updated on November 4, 2026 and step2coin 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.*