# Squid Sudoku vs @CalcMaster

The clearest difference is in-app purchases: @CalcMaster at none against Squid Sudoku's 4. @CalcMaster also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Squid Sudoku sells 4 in-app purchases, starting at $0.99 per month. @CalcMaster asks for nothing beyond the download.

Squid Sudoku ships an update every 3 weeks, @CalcMaster every 10 days. Both last shipped on October 7, 2026.

## The numbers

| Metric | Squid Sudoku | @CalcMaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (13 ratings)](https://appshunter.io/ios/app/squid-sudoku/id1590299931/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 91 MB | 58 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 12+ |
| Developer | [Shanghai Tiding Information Technology Co., Ltd.](https://appshunter.io/developer/1535433089) | [David Kelen](https://appshunter.io/developer/1796712157) |

## What reviewers say

### Squid Sudoku

[App page](https://appshunter.io/ios/app/squid-sudoku/id1590299931)

Engage in classic number puzzles with multiple difficulty levels and daily challenges. Compete against friends or other players in exciting battles, or progress through a stage mode with numerous tasks. The app offers helpful tools like hints and auto-check to enhance your gameplay experience.

**Highlights:** Multiple difficulty levels, Daily challenges, Multiplayer battles, Stage mode with tasks, Hints and auto-check, Replay functionality, Customizable game skins

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Consecutive Monthly | $0.99 | per month |
| Monthly Pro | $1.99 | one-time |
| Quarterly Pro | $4.99 | one-time |
| Yearly Pro | $15.99 | one-time |


### @CalcMaster

[App page](https://appshunter.io/ios/app/calcmaster/id6743536646)

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

**In-app purchases:** none


## Frequently asked questions

### Is Squid Sudoku free?

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

### Is @CalcMaster free?

@CalcMaster is free to download, with no in-app purchases.

### Do Squid Sudoku or @CalcMaster have ads?

Squid Sudoku shows ads; @CalcMaster does not.

### Which is updated more often, Squid Sudoku or @CalcMaster?

Squid Sudoku ships an update every 3 weeks, and @CalcMaster every 10 days. Most recently, Squid Sudoku was updated on October 7, 2026 and @CalcMaster on October 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*