# ∞ Sudoku ∞ vs Space UI

The clearest difference is rating: Space UI at 5.0 against ∞ Sudoku ∞'s 4.5. Space UI also leads on ads (none vs shown) and update cadence (every 2 months vs every 12 months). ∞ Sudoku ∞'s advantage is iOS requirement (16.6 vs 26.0). On price, review sentiment, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Space UI holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

∞ Sudoku ∞ ships an update every 12 months, Space UI every 2 months. The most recent releases landed on October 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ∞ Sudoku ∞ | Space UI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/sudoku/id625720673/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/space-ui/id1494402514/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 12 MB | 190 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [256 Arts](https://appshunter.io/developer/1437835951) |

## What reviewers say

### ∞ Sudoku ∞

[App page](https://appshunter.io/ios/app/sudoku/id625720673)

This application offers a dynamic Sudoku experience with an infinite number of puzzles. It features auto-save functionality and five distinct difficulty levels to challenge players of all skill sets. Enjoy endless Sudoku fun on your iOS devices.

**Highlights:** Dynamically generating puzzles, Auto save, Five difficulty levels, Infinite gameplay

**In-app purchases:** none


### Space UI

[App page](https://appshunter.io/ios/app/space-ui/id1494402514)

Create realistic sci-fi user interfaces procedurally for video productions or personal projects. Features include interactive displays, alien languages, sound effects, and cross-device syncing. Users can also sync colors with smart home lights.

**Highlights:** Procedural UI generation, Interactive interfaces, Multiple alien languages, Sound effects, Save interface seeds, Cross-device syncing, HomeKit light sync

**In-app purchases:** none


## Frequently asked questions

### Is ∞ Sudoku ∞ free?

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

### Is Space UI free?

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

### Which has better reviews, ∞ Sudoku ∞ or Space UI?

Space UI is rated higher. ∞ Sudoku ∞ averages 4.5 out of 5 from 2 ratings, while Space UI averages 5.0 from 1 ratings.

### Do ∞ Sudoku ∞ or Space UI have ads?

∞ Sudoku ∞ shows ads; Space UI does not.

### Which is updated more often, ∞ Sudoku ∞ or Space UI?

∞ Sudoku ∞ ships an update every 12 months, and Space UI every 2 months. Most recently, ∞ Sudoku ∞ was updated on October 15, 2026 and Space UI on October 1, 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.*