Prime Nerd vs １％の不運
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Prime Nerd
Tap prime numbers as they float across the screen within a time limit. This speed math game offers multiple difficulty levels, a combo system for score multipliers, and a training mode to hone your skills. Compete globally on the leaderboard and customize your challenge with digit selection.
- Identify prime numbers
- Timed challenges
- Global leaderboard
- Multiple difficulty levels
- Combo score multiplier
- Training mode
- Dark/Light theme
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Spot the prime numbers and tap them before time runs out — a simple but surprisingly deep speed math game. HOW TO PLAY Bubbles float across the screen showing numbers. Tap only the primes! You have 30 seconds — how many can you get right? Tapping a composite number counts as a miss, so think fast. FEATURES · Global Leaderboard — Submit your score and compete with players worldwide · 4 Difficulty Levels — EASY / NORMAL / HARD, plus a secret LEGEND mode to unlock · Digit Customization — Choose 1 to 5 digits. Bigger numbers = harder = higher points · Combo System — Chain correct taps to multiply your score · Training Mode — Practice without a timer and sharpen your prime sense · Dark / Light Theme — Easy on the eyes, day or night · Japanese / English supported WHO IS IT FOR? Anyone who loves math or numbers People looking for a quick mental workout Players who want to compete on leaderboards Anyone who wants to train focus and reaction speed A prime number is any integer greater than 1 that can only be divided by 1 and itself (2, 3, 5, 7, 11,13…). They seem familiar — until the numbers get big. That's the challenge. Watch a short video ad to enjoy 1 hour of ad-free play. So, what's your score?
１％の不運
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同じ数字はNG！運と緊張感の100パネルチャレンジ！ 「GO」を押すだけ。 ランダムで出る数字を集めて、 全100パネルの制覇を目指そう！ ただし―― ・同じ数字が2連続で出るとアウト ・同じ数字が規定回数出てもアウト シンプルなのに、 手に汗握る緊張感。 ■特徴 ・簡単操作で誰でも遊べる ・短時間でも楽しめる ・ステージで難易度アップ ・ハイスコアに挑戦！ あなたは100枚すべて揃えられる？
Screenshots
Verdict
The clearest difference is review sentiment: １％の不運 at 100% against Prime Nerd's 0%. １％の不運 also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Prime Nerd's advantage is update cadence (every 3 days vs weekly). On price, ads and in-app purchases 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.
Prime Nerd ships an update every 3 days, １％の不運 weekly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.
| Parameter | Prime Nerd | １％の不運 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Update frequency | Every 3 days — better | Weekly |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 105 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroki Sekimoto | Yuki Noda |
Customer experience
Prime Nerd
１％の不運
In-app purchases
Prime Nerd
No in-app purchases
１％の不運
No in-app purchases
