Chainblade vs KEEPYBOO
Price, ratings, monetisation and update history for both games, side by side ā with what reviewers say about each.
Chainblade
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Trace. Slash. Stay alive. Chainblade is a line-drawing puzzle crossed with a roguelite, inspired by Dungeon Raid. Link three or more matching tiles on a six by six board, cut enemies down with the sword, hold the line with shields and potions, and try to reach turn fifty alive. SIMPLE, THEN DEEP - Sword chains cut straight through enemies. A red cross marks anything you can kill this turn - Shields give armour, potions restore health, coins give score and gold - Clear ten coins at once for a coin pouch bonus BUILD YOUR OWN RUN - Level up to earn spells on cooldown: judgement lightning, barrier, freeze, gold rush and more - Collect relics from chests and shops and stack the effects - Fill the shield gauge to pick a permanent stat boost BOSSES IN THE WAY - A boss appears every ten turns. Four types stand between you and the end: normal, thorned (reflects), poison and life-draining GAME CENTER - Take your high score to the worldwide leaderboard Short enough for a gap in the day, deep enough to chew on. One decision changes the whole run.
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. ā 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 Ć. Reveal a cell with no ghost in it and you lose one of three lives. Lose all three and you start the puzzle over ā 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. ā 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. Ā· One wrong tap doesn't end the board (three lives, as above) Ā· 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 Ā· Rows and columns have totals too, so you can work the whole board ā 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. ā 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. ā 2,000 puzzles, ten sets EASY, NORMAL, HARD, EXPERT and MASTER ā 1,110 puzzles ā 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. ā At your own pace, for the long run No timer. Nothing that compares you with friends. Take a break for a while ā 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. ā 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 ā more than 50 rewards mark the way on a long journey. ā Ads and money 1,110 puzzles are free ā 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. Ā· EXTREME (690 puzzles) Ā· ULTIMATE (200 puzzles) Ā· Remove ads ā Also Ā· Plays with no connection (only the ads need one) Ā· Progress backs itself up. Link an Apple or Google account and it follows you to a new phone Ā· Available in 14 languages Bit K.K. (Bit Corp.)
Screenshots
Verdict
The clearest difference is in-app purchases: Chainblade at none against KEEPYBOO's 10. Chainblade also leads on ads (none vs shown). KEEPYBOO's advantage is update cadence (every 2 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. KEEPYBOO sells 10 one-off in-app purchases. Chainblade asks for nothing beyond the download.
Chainblade ships an update every 3 weeks, KEEPYBOO every 2 days. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.
| Parameter | Chainblade | KEEPYBOO |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 2 days ā better |
| Ads | No ā better | Yes |
| In-app purchases | No ā better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details ā not scored | ||
| Size | 29 MB | 99 MB |
| Age rating | 4+ | 9+ |
| Developer | Seiya.k | ę Ŗå¼ä¼ē¤¾ććć |
In-app purchases
Chainblade
No in-app purchases
KEEPYBOO
- Theme: Halloween$0.99
- Theme: Toy Box$0.99
- Theme: Comic Hero$0.99
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- 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









