# Sudoku Master Lt vs ISY MAX

The clearest difference is ads: ISY MAX at none against Sudoku Master Lt's shown. ISY MAX also leads on update cadence (every 3 weeks vs every 10 months). Sudoku Master Lt's advantage is iOS requirement (14.0 vs 16.6). On price, in-app purchases and device support there is nothing between them.

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

Sudoku Master Lt ships an update every 10 months, ISY MAX every 3 weeks. The most recent releases landed on September 13, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Sudoku Master Lt | ISY MAX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/sudoku-master-lt/id1629920362/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 8 MB | 49 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Optimization Lab LLC](https://appshunter.io/developer/1082932084) | [Emily Sudduth](https://appshunter.io/developer/1721274803) |

## What reviewers say

### Sudoku Master Lt

[App page](https://appshunter.io/ios/app/sudoku-master-lt/id1629920362)

Enjoy an endless supply of Sudoku puzzles with 9 difficulty levels. Save your progress, track your stats, and challenge friends in battle mode. Perfect for travel or passing time.

**Highlights:** Unlimited Sudoku puzzles, 9 difficulty levels, Save and resume games, Track playtime and mistakes, Battle mode for multiplayer, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


### ISY MAX

[App page](https://appshunter.io/ios/app/isy-max/id6511208480)

**In-app purchases:** none


## Frequently asked questions

### Is Sudoku Master Lt free?

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

### Is ISY MAX free?

ISY MAX is free to download, with no in-app purchases.

### Do Sudoku Master Lt or ISY MAX have ads?

Sudoku Master Lt shows ads; ISY MAX does not.

### Which is updated more often, Sudoku Master Lt or ISY MAX?

Sudoku Master Lt ships an update every 10 months, and ISY MAX every 3 weeks. Most recently, Sudoku Master Lt was updated on September 13, 2026 and ISY MAX on September 16, 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.*