82億分の1 vs PI DIVER
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！
PI DIVER
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Tap the digits of Pi (π) as they flow and dive past 3.14. PI DIVER is a fast typing game that tests your memory, focus, and reflexes. Compete on the World Ranking, learn with your own mnemonics, practice the digits you missed, and beat your personal best. 3.14159265358979… How far can you type? [Challenge the World Ranking] Compete with players worldwide under the same fixed rules. • SURVIVAL, TIME ATTACK, and BLIND • Up to 3 attempts per mode each day • See your world rank and the rivals near you • Set a public display name * The World Ranking requires an internet connection. [See Every Missed Digit] The result screen shows each digit you missed: its position, the right answer, and what you typed. Tap once to practice from just before it and lock in the tricky stretches. [Learn with Mnemonics] Create and save your own mnemonic phrases from any digit of Pi. The matching phrase appears in sync with the digits while you play. [3 Game Modes] • SURVIVAL: 3 mistakes and you're out. Accuracy is everything. • TIME ATTACK: 60 seconds. Type as many digits as you can. • BLIND: Some digits hide behind "π". One mistake ends the run. [Instant Practice] Practice starts right away with your last start position and mnemonic. You can also start from any digit you like. [Challenge Your Friends] Share your digits and score as a designed score card on social media. [Score System] • Build combos for up to a x10 score multiplier • Earn speed bonuses for fast inputs • Milestone bonuses at 100, 500, 1,000 digits, and beyond • A huge bonus for passing the famous Feynman Point ("999999" at the 762nd decimal place) [100,000 Digits Inside] PI DIVER includes 100,000 decimal places of Pi. Play again and again, and the next digits start to stick. Perfect for players who: • Love Pi, math, numbers, or STEM • Want to learn what comes after 3.14 • Like learning with mnemonics • Enjoy score attacks and leaderboards • Want a quick brain-training challenge
Screenshots
Verdict
The clearest difference is ads: 82億分の1 at none against PI DIVER's shown. PI DIVER's advantage is update cadence (every 3 weeks vs every 5 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. Neither carries in-app purchases, so what you see is what you pay.
82億分の1 ships an update every 5 months, PI DIVER every 3 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.
| Parameter | 82億分の1 | PI DIVER |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 65 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Ikumi NAKAMURA | KAZUKI KONDO |
In-app purchases
82億分の1
No in-app purchases
PI DIVER
No in-app purchases
