Guroku Rainbow vs Digit Link
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Guroku Rainbow
This puzzle game challenges players to strategically move colored stones to their matching target squares. New stone types add complexity and require clever planning to solve increasingly difficult brain teasers. Compete with others on global leaderboards and unlock achievements.
- Move colored stones to target squares
- New rainbow and white stone types
- 110+ challenging puzzles
- Simple controls and easy-to-learn rules
- Global leaderboard for performance comparison
- Collect achievements
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Guroku Rainbow is the successor to the popular Guroku game, which is expanded with new types of stones, bringing even more gameplay possibilities and even more interesting puzzles to solve. The player moves colored stones around the game grid, which determines the directions in which a stone can move at a given position. His goal is to get the individual stones to the target square of the same color. Each time the player moves a stone in a chosen direction, that stone does not stop moving until it hits another stone or arrives at a position on the game grid from which it is no longer allowed to move in that direction. This principle forces players to devise clever solutions, such as strategically placing other stones in such places that the moving stone stops where it is needed. This unique game mechanic, which won the original Guroku so many fans around the world with its originality, is expanded in the new Guroku Rainbow with two new types of stones. The rainbow stone (from which the game gets its name) can be placed on a target field of any colour. And because in Guroku the stone can no longer move once placed on the target square, the player must keep in mind when strategizing for a particular puzzle that the stone may accidentally stop in the wrong place. And frankly, some puzzles are deliberately designed so that the player must try to avoid such a mistake. The white stone, which is the second new feature that Guroku Rainbow brings, also doesn't have a target field of its color in the game grid. In fact, its property is that the first time it hits a regular stone of a base color, it takes the color from that stone and it stays that color. The player must therefore search for a solution to the puzzle that will allow him to recolour the white stone to the required colour at the right moment. Both of these innovations have allowed us to prepare 110 new puzzles that come with the game. And we'll be adding more as part of each update - as with the original Guroku, which now has 235 puzzles. What can you expect? FEATURES ▪The game is free. ▪Simple controls - just move the stones in the direction you want. ▪The rules are easy to learn, our tutorial in the introductory levels will help you with that. ▪Although the rules are simple, you will have a hard time solving the puzzles in the higher levels. The game is especially suitable for those who like to exercise their brain. ▪Compare your performance with other players on the global leaderboard. If you solve a puzzle with fewer moves, you will get a higher score. See how others are doing. ▪Collect achievements in the Game Center to add variety to your gaming experience. This game is available exclusively for iOS.
Digit Link
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Digit Link is a puzzle game where you link all numbers by decreasing (non-increasing) sequences. You will see pre-determined starting points on the grid. Starting from these points, you are expected to create a non-increasing number sequence on the grid by simply swiping your finger. For example, if you start from number three, the next cell to move has to be three or fewer. The aim is the cover all digits on the grid by creating given numbers of sequences. The game will start easy for you to warm up. As you become an expert through levels, you will see the further levels will challenge you and makes you think. Don't worry if you are stuck on a grid, you'll have the option to get a hint about the correct sequences. GAME FEATURES Minimalist idea, minimalist design Challenging 1000+ levels Cool and colorful 12 themes
Screenshots
Verdict
The clearest difference is in-app purchases: Digit Link at none against Guroku Rainbow's 1. Digit Link also leads on update cadence (daily vs every 4 months). On price, ads, device support and iOS requirement 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. Guroku Rainbow sells 1 one-off in-app purchase. Digit Link asks for nothing beyond the download.
Guroku Rainbow ships an update every 4 months, Digit Link daily. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.
| Parameter | Guroku Rainbow | Digit Link |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (22 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 4 months | Daily — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 62 MB | 97 MB |
| Age rating | 4+ | 12+ |
| Developer | MMXIX.CZ s.r.o. | CHEF GAME STUDIO YAZILIM TEKNOLOJILERI LIMITED SIRKETI |
In-app purchases
Guroku Rainbow
- Remove Ads$0.99
Digit Link
No in-app purchases









