Coin toss. Two sides of a coin
akira ohmachi Utilities iPhoneiPadiPod touch
Coin toss. Two sides of a coin is a free Utilities app for iPhone and iPad by akira ohmachi. Requires iOS 15.6. Updated July 15, 2026.
- Price
- Free
- on the App Store
- Size
- 39 MB
- Age 4+
- Updated
- Jul 15
- 2026 · v2.9.0
Screenshots
About Coin toss. Two sides of a coin
A fateful coin toss. But this time, you control the odds. "Coin Toss" is traditionally a fair decision-making method with a 50/50 chance. However, this app features a unique function that allows you to freely change the ratio of heads and tails. It can be used not only for fair decisions but also for simulations with biased probabilities or game mechanics. Main Features: - Customize Ratios: Freely set the probability of heads and tails. Adjust it to 60:40, 80:20, or any ratio to suit your needs. - Advanced Randomness: Generates unpredictable results based on your custom ratios. - Simple Operation: A minimalist design that anyone can use intuitively. Fairness & Mathematical Insights: Theoretically, a fair coin has a 50% chance for both heads and tails. As the number of trials (n) increases, the actual measured values converge toward the expected value. Mathematically, this property is modeled by the "binomial distribution." Use Cases: - Decision Making: Quick guidance when it's hard to choose or when you want to weigh options. - Games & TRPGs: A substitute for dice to simulate specific event probabilities. - Education & Statistics: Perfect for learning the "Law of Large Numbers," where probabilities approach the set value over many trials. Make a fair choice, or manipulate fate? Download now and let the coin spin!
What’s new
Version 2.9.0 · Updated July 15, 2026
Updated the design.
App privacy
The developer, akira ohmachi, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
Used for: Third-Party Advertising, Analytics, App Functionality
Alternatives to Coin toss. Two sides of a coin
Looking for apps like Coin toss. Two sides of a coin? Here are 6 similar apps on the App Store. The highest rated is Coin Flip Pro – Heads/Tails (5.0/5), and all 6 are free to download.
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ふつうのコイントス
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Coin Flip Pro – Heads/Tails
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Coin Flip - Toss Tiny Decision
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Coin Flip and Toss - Either Or
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Coin Flip - Coin Tossing App
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Flip a Coin - Heads or Tails
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Coin toss. Two sides of a coin | – | Free | July 15, 2026 | |
| ふつうのコイントス | – | Free | Oct 7, 2024 | Compare |
| Coin Flip Pro – Heads/Tails | 5.0 / 5 (3) | Free | Dec 2, 2025 | Compare |
| Coin Flip - Toss Tiny Decision | 4.5 / 5 (176) | Free | Apr 29, 2024 | Compare |
| Coin Flip and Toss - Either Or | 4.9 / 5 (39) | Free | Sep 23, 2026 | Compare |
| Coin Flip - Coin Tossing App | – | Free | Jan 23, 2025 | Compare |
| Flip a Coin - Heads or Tails | 4.7 / 5 (28) | Free | Aug 17, 2026 | Compare |