Rainbow Piece vs Puzzle Master
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
Puzzle Master
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Five classic logic puzzles in one free app — Sudoku, KenKen, Nonogram, Slitherlink and Num Connect. No account needed, plays offline. FIVE PUZZLES, ONE GAME Sudoku — Four difficulty levels from easy to expert. Classic 9x9 number placement with notes, mistake tracking and hints. KenKen — Math meets logic. Fill the grid so every cage matches its arithmetic target. 4x4, 5x5, 6x6 and a 6x6 challenge mode. Nonogram — Also known as picross or griddler. Use the number clues to uncover a hidden picture on 5x5 and 10x10 grids. Slitherlink — Draw a single closed loop that satisfies every number. A pure deduction puzzle on 5x5, 6x6 and 7x7 boards. Num Connect — Link 1 to 2 to 3 in order while covering every cell on the board. One solution, no guessing. COMPETE A global leaderboard across all five puzzles — daily, weekly and all time. Climb six leagues from Bronze to Master. Challenge a friend to a duel: you both solve the same board and the faster time wins. PROGRESS Earn XP and level up, keep a daily streak alive, and unlock achievements as you solve. Thousands of hand-checked puzzles in every game, each with exactly one solution. FREE AND OFFLINE Every puzzle is free. Play without an internet connection. No sign-up, no account, no personal data required to start.
Screenshots
Verdict
The clearest difference is ads: Rainbow Piece at none against Puzzle Master's shown. Puzzle Master's advantage is update cadence (weekly vs every 3 months) and iOS requirement (15.0 vs 26.0). On price, 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.
Rainbow Piece ships an update every 3 months, Puzzle Master weekly. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.
| Parameter | Rainbow Piece | Puzzle Master |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiyoshi Izumi | Ersan Kolay |
In-app purchases
Rainbow Piece
No in-app purchases
Puzzle Master
No in-app purchases









