# ∞ Sudoku ∞ vs ColurAI87

The clearest difference is price: ColurAI87 at Free against ∞ Sudoku ∞'s $4.99. ColurAI87 also leads on ads (none vs shown) and update cadence (every 8 days vs every 11 months). ∞ Sudoku ∞'s advantage is in-app purchases (none vs 3) and iOS requirement (16.6 vs 26.0). On device support there is nothing between them.

ColurAI87 is free to download; ∞ Sudoku ∞ costs $4.99 up front. ColurAI87 sells 3 in-app purchases, starting at $3.99 per month. ∞ Sudoku ∞ asks for nothing beyond the download.

∞ Sudoku ∞ ships an update every 11 months, ColurAI87 every 8 days. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | ∞ Sudoku ∞ | ColurAI87 |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/sudoku/id625720673/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 11 months | **Every 8 days** |
| Monetization | Paid | — |
| Size | 13 MB | 73 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Oscar Tsang](https://appshunter.io/developer/416987065) | [Vincent Launay](https://appshunter.io/developer/1198218316) |

## 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


### ColurAI87

[App page](https://appshunter.io/ios/app/colurai87/id6753147068)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Xtremagic Pass – Monthly | $3.99 | per month |
| Xtremagic Pass – Yearly | $24.99 | per year |
| Full Access (One-Time Purchase) | $7.99 | one-time |


## Frequently asked questions

### Is ∞ Sudoku ∞ free?

∞ Sudoku ∞ costs $4.99, with no in-app purchases.

### Is ColurAI87 free?

ColurAI87 is free to download, with in-app purchases available.

### Do ∞ Sudoku ∞ or ColurAI87 have ads?

∞ Sudoku ∞ shows ads; ColurAI87 does not.

### Which is updated more often, ∞ Sudoku ∞ or ColurAI87?

∞ Sudoku ∞ ships an update every 11 months, and ColurAI87 every 8 days. Most recently, ∞ Sudoku ∞ was updated on October 23, 2026 and ColurAI87 on October 13, 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.*