# simian.interface++ vs Timeless Sudoku

The clearest difference is in-app purchases: Timeless Sudoku at none against simian.interface++'s 1. simian.interface++'s advantage is ads (none vs shown) and update cadence (daily vs every 2 weeks). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. simian.interface++ sells 1 one-off in-app purchase. Timeless Sudoku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for simian.interface++ against 5.0 for Timeless Sudoku. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

simian.interface++ ships an update daily, Timeless Sudoku every 2 weeks. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | simian.interface++ | Timeless Sudoku |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/simianinterface-plus-plus/id6502666587/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/timeless-sudoku/id6743944265/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 2 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 152 MB | 186 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [vested interest LLC](https://appshunter.io/developer/1746378363) | [Travel Bug Games](https://appshunter.io/developer/1805198668) |

## What reviewers say

### simian.interface++

[App page](https://appshunter.io/ios/app/simianinterface-plus-plus/id6502666587)

An abstract puzzle game that challenges players with pattern recognition and intuition. It features a unique soundtrack, an original version of the game, and a new infinite mode with procedurally generated content for endless replayability.

**Highlights:** Abstract puzzle experience, Pattern recognition challenges, Intuitive gameplay, Original game included, Infinite_loop mode, Procedurally generated levels

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Full Game | $1.99 | one-time |


### Timeless Sudoku

[App page](https://appshunter.io/ios/app/timeless-sudoku/id6743944265)

A classic number puzzle game updated for modern players. It offers endless brain-teasing fun with intuitive controls and clean visuals. Perfect for quick sessions or deep focus.

**Highlights:** Classic number puzzle gameplay, Intuitive controls, Clean visuals, Suitable for all skill levels, Endless brain-teasing fun

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

**In-app purchases:** none


## Frequently asked questions

### Is simian.interface++ free?

simian.interface++ is free to download, with in-app purchases available.

### Is Timeless Sudoku free?

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

### Which has better reviews, simian.interface++ or Timeless Sudoku?

simian.interface++ and Timeless Sudoku are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do simian.interface++ or Timeless Sudoku have ads?

Timeless Sudoku shows ads; simian.interface++ does not.

### Which is updated more often, simian.interface++ or Timeless Sudoku?

simian.interface++ ships an update daily, and Timeless Sudoku every 2 weeks. Most recently, simian.interface++ was updated on October 9, 2026 and Timeless Sudoku on October 11, 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.*