Waldoku vs RainEl
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
Waldoku
Read full descriptionHide full description
Waldoku is a calm logic puzzle game about finding hidden dogs on a square board. Each level hides the same number of dogs as the board size. Use color areas, rows, columns, and adjacency rules to narrow down the correct tiles. The rules are simple: - Each color area has exactly one dog. - Each row has exactly one dog. - Each column has exactly one dog. - Dogs cannot touch each other. Mark tiles that cannot contain a dog with X, then double tap the tile where you think a dog is hidden. When many tiles can be ruled out at once, drag across the board to mark X quickly. The early levels introduce the rules step by step, then larger boards and combined clues add more depth. If you get stuck, hint and dog finder items can help you continue. Waldoku is designed for short puzzle sessions, careful thinking, and the satisfying moment of finding the exact answer.
RainEl
Read full descriptionHide full description
Forget everything you know about match-3. In Rainbow Elimination, you don't swap two balls โ you slide an entire row or column. The empty space moves with your swipe, and matches form perpendicular to the direction you slide. One move ripples across the whole board in a way no ordinary match game does. HOW TO PLAY โข Swipe any row or column to shift the balls โข 2 or more same-colored balls lining up across your swipe = a match โข Matched balls vanish โ your goal is to clear the entire 9ร9 grid โข Stuck? Add a couple of fresh balls, or swap any two into place WHY IT'S DIFFERENT โข No swapping adjacent tiles โ you control whole lines at once โข Every swipe can trigger chains you didn't plan for โข Clean, colorful, no clutter โ just you and the grid โข Quick sessions that fit a commute or a coffee break Simple to pick up, surprisingly deep to master. Can you clear the rainbow?
Screenshots
Verdict
The clearest difference is ads: Waldoku at none against RainEl's shown. Waldoku also leads on update cadence (every 9 days vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Waldoku sells 10 one-off in-app purchases and RainEl sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Waldoku ships an update every 9 days, RainEl monthly. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.
| Parameter | Waldoku | RainEl |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days โ better | Monthly |
| Ads | No โ better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details โ not scored | ||
| Size | 220 MB | 108 MB |
| Age rating | 4+ | 4+ |
| Developer | Sori Games | Andrey Lunevich |
In-app purchases
Waldoku
- Hints x5$0.99
- Dog Finders x5$0.99
- Remove Ads for 24 Hours$0.99
Show 7 moreShow fewer
- Dog Finders x20$2.99
- Hints x20$2.99
- Remove Ads for 7 Days$2.99
- Hints x50$7.99
- Dog Finders x50$7.99
- Remove Ads Forever$9.99
- Rookie detective kit$9.99
RainEl
- Welcome Offer$0.99
- 5 Swaps$0.99
- 5 Hints$0.99
Show 4 moreShow fewer
- 15 Hints$1.99
- Remove Ads$2.99
- 50 Swaps$4.99
- 50 Hints$4.99









