Sudoku Master Lt vs ISY MAX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sudoku Master Lt
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.
- Unlimited Sudoku puzzles
- 9 difficulty levels
- Save and resume games
- Track playtime and mistakes
- Battle mode for multiplayer
- Offline play
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Sudoku Master Lt gives you virtually unlimited number of Sudoku puzzles to solve right on your iPhone or iPad. There are 9 difficulty levels for the puzzles, with 1 the easiest and 9 the most difficult. You can select a comfortable difficulty level to play with. The last Sudoku game will be saved, so you can pause the game or leave the app and come back later to continue solving the puzzle whenever you are free. Your play time and number of mistakes will be recorded so that you can track your progress in developing Sudoku-solving skills. The app now has battle mode, where you and your friends/family can compete with each other on the same puzzle. The app is truly a good companion for travels or just passing time.
ISY MAX
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Inside the ISY MAX app, you can: Access all of your videos in one easy to use app Receive push notifications with the latest news and updates Access to all of your videos without having to remember your password Save your favorite posts so you can quickly find them later END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sudoku Master Lt | ISY MAX |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 10 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 8 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Optimization Lab LLC | Emily Sudduth |
In-app purchases
Sudoku Master Lt
No in-app purchases
ISY MAX
No in-app purchases
Questions
Is Sudoku Master Lt free?
Is ISY MAX free?
Do Sudoku Master Lt or ISY MAX have ads?
Which is updated more often, Sudoku Master Lt or ISY MAX?
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