MathOn! vs 星空とおじいさん
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
MathOn!
A fast-paced math game that challenges your arithmetic skills against the clock. Solve equations to progress, use power-ups strategically, and compete on global leaderboards. The game continues indefinitely, testing your mental limits.
- Fast-paced arithmetic challenges
- Time-based equation solving
- Strategic power-up usage
- Global leaderboard competition
- Endless gameplay mode
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Think fast, calculate faster! MathOn is an adrenaline-pumping, math-based game where quick thinking is your greatest weapon. Solve arithmetic equations as fast as possible before time runs out! Each round, the challenge intensifies, pushing your brain to its limits. The game never ends — only YOU decide when it’s over! Compete with the world in a global leaderboard to see how far can you brain take you against the world's stage! Use power-ups wisely, but once they’re gone, it's just you against the numbers. Can you keep up? or will your brain reach its capacity? Download MathOn now, strengthen your mind, and put your math skills to the ultimate test!
星空とおじいさん
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【どんなゲーム】 本ゲームは少女「あかり」と「おじいさん」が天体観測をしながら星座を作っていきます。 【ゲームジャンル】 星座は「一筆書き」で解くパズルにチャレンジしていきます。 パズルを解くたびに少しずつ物語が展開していきます。 【どんな物語】 綺麗な星空の下で少女「あかり」と「おじいさん」が天体観測に出かけます。 「おじいさん」は「あかり」に星々の魅力を語りながら、一緒に星座を作っていくことになります。 星座を作りながら、長い人生を歩んだ「おじいさん」だからこそ、生きていく上で大切なことを「あかり」に伝えていきます。 ふたりの心温まる物語をぜひ最後までお楽しみください!
Screenshots
Verdict
The clearest difference is in-app purchases: 星空とおじいさん at none against MathOn!'s 5. 星空とおじいさん also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price 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. MathOn! sells 5 one-off in-app purchases. 星空とおじいさん asks for nothing beyond the download.
| Parameter | MathOn! | 星空とおじいさん |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 days | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 746 MB | 246 MB |
| Age rating | 4+ | 4+ |
| Developer | Emerald Wizard Studios | runato sakano |
In-app purchases
MathOn!
- 1,000 Gold$1.99
- 2,000 Gold$2.99
- 5,000 Gold$5.99
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- 10,000 Gold$9.99
- Stop Ads$14.99
星空とおじいさん
No in-app purchases









