uu vs Mars 2501
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
uu
This is a minimalist puzzle game with 200 challenging levels, offering a fun and intricate experience. It features a level selection system, the ability to replay past levels, and options to skip difficult stages or unlock all levels.
- 200 challenging levels
- Leaderboards and medals
- Replay past levels
- Skip difficult levels
- Unlock all levels
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uu - 2nd in "focus" (aa, uu, ff, au, rr, ao, rl, sp, th, ki, ci, sn, lo, ba, ov, sh, fi, do, ru & ti) Different entry points. Timing is key. Picture a multifaceted aa, more complexity, more intricacies but just has a much fun. If you're already deep into playing aa or new to the range, you'll instantly love uu, it's an amazing next step in our minamalistic gaming journey. uu starts with 200 awesome levels, with more added all the time. You can also top the leaderboard and earn medals! (bronze, silver and gold). There's 200 levels to solve right now, intertwined with all sorts of tweaks and surprises. You can also go back and replay any level you've already passed, at any time (Choose Level). If you're stuck on a really tricky level, skip it! (Tap Skip on the Fail Screen) If you can't wait, unlock all 200 levels and replay at your own pace! (Choose Level > Unlock All Levels) Thanks for all your support, I hope you're enjoying the "focus" series thus far. Handmade in Australia, General Adaptive Terms: generaladaptive.com/terms-privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 ads: Mars 2501 at none against uu's shown. uu's advantage is update cadence (every 2 months vs every 3 months). On price, in-app purchases, device support and iOS requirement 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. uu sells 8 in-app purchases, starting at $1.99 per month and Mars 2501 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
uu ships an update every 2 months, Mars 2501 every 3 months. The most recent releases landed on November 1, 2026 and October 28, 2026 respectively.
| Parameter | uu | Mars 2501 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (202 ratings) — better | — |
| Positive reviews | 47.1% of reviews | — |
| Number of ratings | 202 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 132 MB | 111 MB |
| Age rating | 4+ | 12+ |
| Developer | General Adaptive Apps Pty Ltd | Janek Soomets |
Bugs and requests
uu
Reported bugs
3 issues- Dots spawn inside central circle on iPhone
- Center stops spinning before pins run out on level 155
- Dots migrate to inside of circle on level 142
Requested features
3 requests- Option to skip difficult levels
- More color and music
- Level progress indicators
Mars 2501
Not enough reviews yet to summarise bugs or requests.
In-app purchases
uu
- uu Legend$1.991 Month
- uu Legend$19.991 Year
- Skip uu Level$0.49
- Skip 3 Levels$1.29
- Skip 5 Levels$1.99
Show 3 moreShow fewer
- Remove uu Ads$5.99
- Unlock All of uu$7.99
- Unlock all + remove ads$10.99
Mars 2501
- Upgrade Mars 2501$4.99









