82億分の1 vs ONE HALF
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
82億分の1
Compete globally to achieve the highest score by tapping to hit a set probability. Aim for the world's best score and test your tapping speed in a special mode. Compete for world records in 5 or 10-second bursts.
- Set tap probability
- Score based on hits
- Global score competition
- Aim for world's best
- Rapid tap mode
- World record attempts
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自分で1タップするときに当たる確率を設定します。 当たったらその数がスコアに。 スコアの大きさを全国で競って、世界一を目指すゲーム。 連打力モードも搭載。 5秒または10秒間でのタップ力で世界記録を目指そう！
ONE HALF
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Among the two choices displayed, only one is the correct answer. Challenge yourself to see how long you can keep choosing correctly in a row. If you pick incorrectly, you’ll have to start over — but you can retry once by watching an ad. You can view your past records as well as your success rate compared to all players under “Record so far”
Screenshots
Verdict
The clearest difference is ads: 82億分の1 at none against ONE HALF's shown. 82億分の1 also leads on iOS requirement (15.6 vs 17.0). ONE HALF's advantage is update cadence (every 2 days vs every 5 months). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
82億分の1 ships an update every 5 months, ONE HALF every 2 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.
| Parameter | 82億分の1 | ONE HALF |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 months | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 65 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Ikumi NAKAMURA | ITOTSUKA |
In-app purchases
82億分の1
No in-app purchases
ONE HALF
No in-app purchases
