Flash Roulette vs じゃんけんマスター
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flash Roulette
Randomly select one of your registered cards, which can feature characters or images. Tap the screen to stop the selection process and reveal your chosen card. The game allows for quick switching between registered cards and offers an option to finish early with a long press.
- Customizable cards with images or characters
- Random card selection
- Quick card switching
- Tap to stop selection
- Long press to finish early
Read full descriptionHide full description
This is a game in which you select one of the cards at random from among the multiple registered cards. You can register characters or images on the card. When you start the game, you can quickly switch between the cards you have registered. When you tap the screen, it stops slowly and one card is selected. You can finish in the middle by pressing and holding the screen.
じゃんけんマスター
Read full descriptionHide full description
楽しく遊びながらスキルアップ！ 新しいじゃんけんアプリで挑戦しよう！ [主な特徴] ・クラシックモード：シンプリなじゃんけんで手軽に楽しめます。 ・タイムアタックモード：素早い反応で高スコアを目指そう！ ・計算力モード：計算をときながらじゃんけんに挑戦。 ・記憶力モード：過去に選んだ手を思い出して答えるクイズ形式の記憶力が試されるシン感覚モード！ アプリ全体をタブビーで整理し、スムーズにモードを切り替え可能。背景色もピンクから黄色に進化して、さらに楽しい体験を提供します！ さぁ、新しいじゃんけんの世界で遊んでみませんか？
Screenshots
Verdict
The clearest difference is ads: じゃんけんマスター at none against Flash Roulette's shown. Flash Roulette's advantage is iOS requirement (14.0 vs 17.6). On price, update cadence, 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.
Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on October 20, 2026 and October 17, 2026 respectively.
| Parameter | Flash Roulette | じゃんけんマスター |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 5 months | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 20 MB | 5 MB |
| Age rating | 12+ | 4+ |
| Developer | Motoki Takahashi | Kensuke Aritoshi |
In-app purchases
Flash Roulette
No in-app purchases
じゃんけんマスター
No in-app purchases
