Flip Coin Master vs Knuckle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Flip Coin Master
Simulate coin flips with a variety of real and imaginative currency, from historical coins to chocolate ones. Unlock more coins by watching ads and create your own custom coins to expand your virtual collection. Enjoy endless fun with this unique coin-flipping simulator.
- Simulate flips with diverse coins
- Unlock coins by watching videos
- Create and upload custom coins
- Historical coin options
- Chocolate coin simulation
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Imagine flipping a coin with a 5-peso coin, then immediately after with a US penny, a euro, a Japanese yen, or even a historical coin from the reign of Alexander the Great, and finally with a delicious chocolate coin... you can do all that and more with this app. Hours and hours of wholesome fun are guaranteed. From the start, you have 10 coins available, and you can unlock 20 more by watching a short video and keeping the coin in your inventory forever. But that's just the beginning; you can create and upload your own coins too... unleash your imagination with Volado Maestro.
Knuckle
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Knuckle turns your screen into a ring sizer. Lay a ring you already own flat on the display, match the gold circle to the inside of the band, and read the size. That is the whole thing. No camera, no printing, no paper strips to cut out, no trip to a jeweler. Before the first measurement you line a bank or ID card up against an outline, once, so Knuckle learns exactly how large a millimetre is on your particular screen. Every reading after that is true to your device. You get the inner diameter in millimetres next to the sizes people actually ask for - US, UK, EU, Japan, Australia, Hong Kong and Italy. Each result carries an honest confidence band instead of one number pretending to be certain. Sizes are worth keeping. Save one under the person it belongs to, note the finger and the hand, and look it up later while you are standing in the shop. Send a clean size card to whoever is buying. Nothing leaves your device. No account, no sign in, and it all works with the network switched off. Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vTDX9pxPOlUJl_skVUHPi99mAw0y2B2BYd_v1mJkoF3xW3rlOcW5KlYd4t93MMbbGhctSTnBTy7d_l6/pub Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Flip Coin Master at none against Knuckle's 1. Flip Coin Master also leads on iOS requirement (15.0 vs 26.0). Knuckle's advantage is ads (none vs shown). On price 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. Knuckle sells 1 one-off in-app purchase. Flip Coin Master asks for nothing beyond the download.
| Parameter | Flip Coin Master | Knuckle |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 69 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Ricardo Gibran Ramos Navarro | Andrii Bashta |
In-app purchases
Flip Coin Master
No in-app purchases
Knuckle
- Knuckle Lifetime$9.99









