Rainbow Piece vs POYOJI
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.
POYOJI
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POYOJI is a small egg-themed puzzle game for Apple Watch. Enjoy the feeling of gradually raising your eggs in short spare moments. Match and move the same eggs to merge them into the next level. Organize the board carefully and aim for the highest-ranking eggs you can create. There are two game modes. In STORY mode, you clear stage objectives one by one. Meeting the conditions lets you move on to the next stage. In ENDLESS mode, you keep playing until the board is full, trying to push your high score as far as you can. The controls are simple and designed so the game is easy to play even on the small Apple Watch screen. It’s a game for people who want to enjoy a light puzzle on their wrist during commutes, school breaks, or any small moment of free time.
Screenshots
Verdict
The clearest difference is iOS requirement: POYOJI at 15.6 against Rainbow Piece's 26.0. On price, update cadence, 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.
Rainbow Piece ships an update every 3 months, POYOJI every 2 months. Both last shipped on September 30, 2026.
| Parameter | Rainbow Piece | POYOJI |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, Apple Watch | iPhone, iPod, Apple Watch — better |
| Requires iOS | 26.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiyoshi Izumi | Chihiro Omi |
In-app purchases
Rainbow Piece
No in-app purchases
POYOJI
No in-app purchases
Questions
Is Rainbow Piece free?
Is POYOJI free?
Do Rainbow Piece or POYOJI have ads?
Which is updated more often, Rainbow Piece or POYOJI?
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