# Euler Sudoku vs Tracknite

The clearest difference is in-app purchases: Euler Sudoku at none against Tracknite's 2. Euler Sudoku also leads on device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Tracknite sells 2 in-app purchases, starting at $1.99 per month. Euler Sudoku asks for nothing beyond the download.

Euler Sudoku ships an update weekly, Tracknite every 9 days. The most recent releases landed on October 29, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Euler Sudoku | Tracknite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/euler-sudoku/id1538301589/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Monetization | Free | — |
| Size | 90 MB | 11 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [柏林 魏](https://appshunter.io/developer/1481532280) | [Michal Myczkowski](https://appshunter.io/developer/6788016279) |

## What reviewers say

### Euler Sudoku

[App page](https://appshunter.io/ios/app/euler-sudoku/id1538301589)

Engage your mind with a classic number puzzle game. Solve logic grids to earn coins, unwind, and experience the satisfaction of numerical challenges. It's a relaxing yet stimulating way to pass the time.

**Highlights:** Number placement puzzles, Coin rewards for completion, Relaxing gameplay, Challenging levels, Enjoyable number interaction

**Features:** macOS Compatibility

**In-app purchases:** none


### Tracknite

[App page](https://appshunter.io/ios/app/tracknite/id6795256574)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tracknite Monthly | $1.99 | per month |
| Tracknite Yearly | $22.99 | per year |


## Frequently asked questions

### Is Euler Sudoku free?

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

### Is Tracknite free?

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

### Do Euler Sudoku or Tracknite have ads?

Neither Euler Sudoku nor Tracknite shows ads.

### Which is updated more often, Euler Sudoku or Tracknite?

Euler Sudoku ships an update weekly, and Tracknite every 9 days. Most recently, Euler Sudoku was updated on October 29, 2026 and Tracknite 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.*