Fit the Donut vs Rainbow Piece
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Fit the Donut
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Fit the Donut - Circle Puzzle is a fast-paced, super addictive, action-puzzle game that will get you hooked! How to play: 1. Tap in the circle to place the slice shape. 2. Complete a circle or fill a slice to blow it up. 3. Be careful! Game over if there is no corresponding space in circle or slice to place the current shape. Key Features: - Simple gameplay in board games with circle and slices. - Unlimited level. - Amazing colorful graphics and soundtrack. - Both challenging and satisfying. This is a fun and classic addictive retro-style addictive puzzle game, worth hundreds of hours to keep you challenged and addictive. It will improve your cognitive abilities such as attention, concentration and logic reasoning. If you ever love Roll Merge game, Connect Lights, Sort Puzzle, you will love this. Share the fun with your family & friends and enjoy the addictive puzzle together!
Rainbow Piece
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Rainbow Piece: Relaxing Circular Jigsaw. Escape the stress of high scores. Enjoy a pure, calm puzzle experience on your wrist. 【How to Play】 - Move: Drag your finger on the screen to move the pieces. - Rotate: Turn the Digital Crown to rotate the selected piece. 【Choose Your Challenge】 - Normal: Relatively easy, as you solve the puzzle by following the rainbow color gradient. - Hard: Solve the puzzle by relying solely on the shape of the pieces. 【Two Sizes Available】 - 13 Pieces: Large pieces and a small number of pieces make for a casual game. - 25 Pieces: Small pieces and a large number of pieces make for a more thorough game. 【Tip】 Long press the screen any time to return to the start screen. Take your time. Find your peace. Complete the rainbow.
Screenshots
Verdict
The clearest difference is update cadence: Fit the Donut at every 2 days against Rainbow Piece's every 3 months. Fit the Donut also leads on iOS requirement (9.0 vs 26.0). On price, ads, 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.
Fit the Donut ships an update every 2 days, Rainbow Piece every 3 months. The most recent releases landed on September 30, 2026 and October 15, 2026 respectively.
| Parameter | Fit the Donut | Rainbow Piece |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 9.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 113 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Nguyen Thanh | Kiyoshi Izumi |
In-app purchases
Fit the Donut
No in-app purchases
Rainbow Piece
No in-app purchases
Questions
Is Fit the Donut free?
Is Rainbow Piece free?
Do Fit the Donut or Rainbow Piece have ads?
Which is updated more often, Fit the Donut or Rainbow Piece?
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