Just Plain Sudoku vs Mars 2501
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Just Plain Sudoku
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Train Your Brain with the Ultimate Sudoku Experience! Discover the timeless puzzle game loved by millions โ now beautifully designed and easy to play on your iPhone and iPad. Whether youโre a beginner or a Sudoku master, this app offers endless fun and challenge!
Mars 2501
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Mars 2501 is a strategy game. It is a simple and fast game. During the game you build robots that destroy your opponents. The opponents are red and your color is blue. The one who destroys the opponent's Factory and Head building wins the game. As I said, the game is fast, you have to act all the time to defeat the opponent. There are three types of robots and each of them has a different firepower. Robot 3 is the strongest. Of course, there is also a bonus character, the Immortal. Killing him is not as easy as destroying the robots. And you can also build workers who repair buildings. Go to the building with the worker, if the building is damaged, it will be repaired. Movement is done by pressing the character with your finger, then he will stop, if you move in a certain direction, then he will move in that direction. Shooting is done automatically when the opponent is at a certain distance.
Screenshots
Verdict
The clearest difference is in-app purchases: Just Plain Sudoku at none against Mars 2501's 1. Just Plain Sudoku also leads on iOS requirement (12.0 vs 15.0). Mars 2501's advantage is ads (none vs shown). On price, update cadence and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Mars 2501 sells 1 one-off in-app purchase. Just Plain Sudoku asks for nothing beyond the download.
Just Plain Sudoku ships an update every 2 months, Mars 2501 every 3 months. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.
| Parameter | Just Plain Sudoku | Mars 2501 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months โ better | Every 3 months |
| Ads | Yes | No โ better |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 12.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 42 MB | 111 MB |
| Age rating | 4+ | 12+ |
| Developer | Alptug Ince | Janek Soomets |
In-app purchases
Just Plain Sudoku
No in-app purchases
Mars 2501
- Upgrade Mars 2501$4.99
Questions
Is Just Plain Sudoku free?
Is Mars 2501 free?
Do Just Plain Sudoku or Mars 2501 have ads?
Which is updated more often, Just Plain Sudoku or Mars 2501?
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