# Solid Sudoku vs Perfect Circle

The clearest difference is in-app purchases: Solid Sudoku at none against Perfect Circle's 7. Solid Sudoku also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price, update cadence and ads there is nothing between them.

Both are free to download. Perfect Circle sells 7 one-off in-app purchases. Solid Sudoku asks for nothing beyond the download.

Solid Sudoku ships an update every 3 days, Perfect Circle every 4 days. The most recent releases landed on September 14, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Solid Sudoku | Perfect Circle |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/perfect-circle-one-tap/id6789331984/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 23 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sooyeol Jeong](https://appshunter.io/developer/1877260413) | [Dominion Labs Inc.](https://appshunter.io/developer/1842772577) |

## What reviewers say

### Solid Sudoku

[App page](https://appshunter.io/ios/app/solid-sudoku/id6759184547)

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

**In-app purchases:** none


### Perfect Circle

[App page](https://appshunter.io/ios/app/perfect-circle-one-tap/id6789331984)

A minimalist game of precision and rhythm where players tap at the exact moment a dot enters a moving gate. Chain perfect taps to increase your score multiplier and aim for high scores. Unlock new cosmetic items and utilize power-ups to aid your progress.

**Highlights:** One-tap gameplay, Perfect-streak multiplier, Unlockable skins, Power-ups, Daily challenges, High score chasing, Clean design

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Coins | $0.99 | one-time |
| Coin Pouch | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Starter Bundle | $2.99 | one-time |
| Bag of Coins | $4.99 | one-time |
| Coin Vault | $9.99 | one-time |
| Coins Chest | $19.99 | one-time |


## Frequently asked questions

### Is Solid Sudoku free?

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

### Is Perfect Circle free?

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

### Do Solid Sudoku or Perfect Circle have ads?

Both Solid Sudoku and Perfect Circle show ads.

### Which is updated more often, Solid Sudoku or Perfect Circle?

Solid Sudoku ships an update every 3 days, and Perfect Circle every 4 days. Most recently, Solid Sudoku was updated on September 14, 2026 and Perfect Circle on September 8, 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.*