4=10 vs 2 Sides Challenge
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
4=10
A casual number puzzle game for all ages. Combine four given numbers using basic math operations to reach the target of 10. It offers a relaxing experience that improves mental math skills and number familiarity.
- Combine four numbers to equal 10
- Basic math operations
- Gradually increasing difficulty
- One-handed play
- Improves mental math skills
- Relaxing and soothing gameplay
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4=10 is a simple number puzzle game suitable for all ages. The objective is to use four given numbers and combine them in an expression that equals 10. For example, you can solve it by adding 1, 2, 3, and 4 together (1+2+3+4=10). The game relies on basic math operations and starts off easy, gradually increasing in difficulty. It's designed to be a relaxed and soothing experience. You can play it with just one hand, using your phone whenever and wherever you like. By playing this game, you'll become more comfortable with numbers and improve your basic math skills, including mental calculations, using parentheses, and following the correct order of operations. Enjoy the game and happy calculating! :)
2 Sides Challenge
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Think you can control both sides at once? 2 Sides Challenge is a fast two-hand reflex game that looks simple — until both sides start demanding your attention. Use your left and right hands at the same time to connect matching shapes before time runs out. The longer you survive, the harder it gets. HOW TO PLAY • Control both sides at the same time • Connect the matching shapes • React before the timer runs out • Stay focused as the challenge gets harder • Beat your high score • Climb the global leaderboard It takes seconds to understand — and a lot longer to master. Test your reflexes. Challenge your coordination. Then hand the phone to a friend and see who can last longer. How long can you keep both sides under control?
Screenshots
Verdict
The clearest difference is in-app purchases: 2 Sides Challenge at none against 4=10's 1. 2 Sides Challenge also leads on update cadence (every 10 days vs every 2 months). 4=10's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price and ads 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. 4=10 sells 1 one-off in-app purchase. 2 Sides Challenge asks for nothing beyond the download.
4=10 ships an update every 2 months, 2 Sides Challenge every 10 days. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.
| Parameter | 4=10 | 2 Sides Challenge |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (2.6K ratings) — better | — |
| Positive reviews | 97.9% of reviews | — |
| Number of ratings | 2.6K — better | — |
| Update frequency | Every 2 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 33 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Sveinn Steinarsson | Dmitrii Nikolaev |
Bugs and requests
4=10
Reported bugs
1 issue- None reported
Requested features
2 requests- Add more difficulty levels
- Introduce new gameplay modes
2 Sides Challenge
Not enough reviews yet to summarise bugs or requests.
In-app purchases
4=10
- 4≠10 add-on$3.99
2 Sides Challenge
No in-app purchases









