rop vs KEEPYBOO
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
rop
A polished and mind-bending puzzle game featuring a minimalist design. It offers a new puzzle experience with 198 challenging levels.
- Minimalist puzzle game
- Mind-bending levels
- Extraordinary design
- 198 levels
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New, polished, mind-bending, minimal puzzle game with dozens of levels and extra-ordinary design.. Features: - Beautifully crafted minimal puzzle game - 198 mind bending levels Get ready for the new puzzle experience..
KEEPYBOO
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Find the ghosts hiding on the board, using nothing but the numbers. Nothing is left to luck. All 2,000 puzzles solve by reasoning, start to finish. When you get stuck, a hint shows you why the next move is forced. ■ The rules A number in a cell counts the ghosts in the eight cells around it. A number at the edge of a row or column counts the ghosts in that line. Mark the cells you've ruled out with an ×. Reveal a cell with no ghost in it and you lose one of three lives. Lose all three and you start the puzzle over — on the spot, nothing else lost. That's everything. The first puzzle teaches you as you play it, so you can start without reading any of this. ■ If you love Sudoku, nonograms or logic grids KEEPYBOO never asks you to guess: the numbers always give you a logical next move. 2,000 puzzles, from gentle to expert, and the first one teaches you how. · One wrong tap doesn't end the board (three lives, as above) · Nothing is a coin flip. Every one of the 2,000 puzzles has been checked to solve by reasoning alone, all the way to the end · Rows and columns have totals too, so you can work the whole board ■ You don't have to be a maths person The 160 EASY puzzles are built entirely from moves where a single number tells you the answer. Higher sets add new kinds of move: comparing two numbers, then assuming a ghost is somewhere and finding the contradiction. The boards grow, but that isn't where the difficulty comes from. Every technique is written up in the Tips library, one at a time, illustrated on a real board. ■ Solve it, and a second puzzle opens Come back to a puzzle you solved by pure deduction and the ghosts now show faintly. The question is no longer where they are, but in what order to catch them. On the same board, the order can change the score several times over. Only the best order earns the diamond. Finish one with no hints and no mistakes and you earn a crown. Every one of the 2,000 puzzles can be solved, and then mastered. ■ 2,000 puzzles, ten sets EASY, NORMAL, HARD, EXPERT and MASTER — 1,110 puzzles — are free. Past those are EXTREME (690) and ULTIMATE (200), and the first several puzzles of each are free to try. A small board takes a few minutes; a large one takes as long as you like. Every puzzle is saved on its own, so you can go a little at a time. ■ At your own pace, for the long run No timer. Nothing that compares you with friends. Take a break for a while — your progress and everything you've collected stay just as they were. Just one puzzle today is fine. It's a game for working through 2,000 puzzles, little by little, at your own speed. ■ The ghosts, and things to collect Keepy, Mimo, Zuzu, Piri and Tobi. They chatter away beside you while you think. As you go, new wallpaper themes, sound sets and ghost friends join you. Milestones in puzzles solved, diamonds and crowns, your Logic Rating — more than 50 rewards mark the way on a long journey. ■ Ads and money 1,110 puzzles are free — no time limit, no play limit on any of them. There are ads: occasional ones between rounds, and a video when you ask for a hint. You can buy them away. Everything is a one-time purchase. There is no subscription. · EXTREME (690 puzzles) · ULTIMATE (200 puzzles) · Remove ads ■ Also · Plays with no connection (only the ads need one) · Progress backs itself up. Link an Apple or Google account and it follows you to a new phone · Available in 14 languages Bit K.K. (Bit Corp.)
Screenshots
Verdict
The clearest difference is price: KEEPYBOO at Free against rop's $0.99. KEEPYBOO also leads on update cadence (every 2 days vs monthly). rop's advantage is in-app purchases (none vs 10) and ads (none vs shown). On 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
KEEPYBOO is free to download; rop costs $0.99 up front. KEEPYBOO sells 10 one-off in-app purchases. rop asks for nothing beyond the download.
rop ships an update monthly, KEEPYBOO every 2 days. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.
| Parameter | rop | KEEPYBOO |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.2 (18 ratings) — better | — |
| Positive reviews | 63.5% of reviews | — |
| Number of ratings | 18 — better | — |
| Update frequency | Monthly | Every 2 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Best chart rank | #156 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 25 MB | 99 MB |
| Age rating | 4+ | 9+ |
| Developer | GAMEBRAIN YAZILIM TEKNOLOJILERI ANONIM SIRKETI | 株式会社ビット |
Bugs and requests
rop
Reported bugs
2 issues- Inability to restore in-app purchases
- Game freezes or crashes on certain devices
Requested features
4 requests- Add a hint system or tutorial for new players
- Implement cross-device progress sync
- Increase game board size for better visibility
- Add more variety in puzzle types and gameplay
KEEPYBOO
Not enough reviews yet to summarise bugs or requests.
In-app purchases
rop
No in-app purchases
KEEPYBOO
- Theme: Halloween$0.99
- Theme: Toy Box$0.99
- Theme: Comic Hero$0.99
Show 7 moreShow fewer
- Theme: Pixel Castle$0.99
- Sound: Koto Strings$0.99
- Sound: Water Drops$0.99
- Sound: 80s Ghost$0.99
- ULTIMATE Pack$1.99
- EXTREME Pack$3.99
- Remove Ads$4.99









