MDonkey vs HaruCat
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
MDonkey
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【Not just a game, but an experiment in evolution】 Inspired by the famous "Ayumu Project" at Kyoto University. A chimpanzee named Ayumu demonstrated an eidetic memory capability that leaves most humans in the dust. It makes us wonder: along the millions of years of evolution, as we gained language and logic, did we lose some primal, powerful instincts? This app brings that legendary laboratory challenge to your phone. 【The Core Challenge】 Numbers flash on the screen and vanish in the blink of an eye. You must tap them in the correct order relying solely on your instantaneous visual afterimage. Eidetic (0.5s): Think like Ayumu. Challenge the limits of humanity. Average (2.0s): A starting point for most sapiens. Rote (10.0s): Take your time. For those who admit defeat (jk). 【Ultimate Experience】 To replicate the purest reaction test, we've optimized this app to the millisecond: Zero-Latency Audio: Built with iOS SystemSound API for instant feedback the moment you touch. Fluid Interaction: No superfluous animations to drag down your reaction speed. Minimalist Aesthetic: High-contrast black and white design to keep you hyper-focused. 【Secret Features】 Too hard or too easy? Try a LONG PRESS on the start button. Want to know the story? Try SHAKING your phone. This might be the simplest game on your phone, yet the hardest challenge you'll ever face. Can you reclaim your primal power?
HaruCat
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A little cat, a cozy day. HaruCat is a casual puzzle game about merging matching cats into bigger ones. A cream cat mascot and warm apricot screens welcome you to your next round. Aim, release, and watch them grow Slide left or right to aim, then lift your finger to drop a cat. When two matching cats meet, they grow to the next level. Keep the pile below the danger line and chain merges for a higher score. Four ways to play - Classic: Learn the rhythm and chase your own best score. - Speed: Drop cats with a shorter wait as the challenge ramps up faster. - 5 Minute: Score as much as you can in five minutes. - 1000 Point: Merge your way to a 1000-point goal. Three more games for a change of pace - Cat Match: Swap neighboring cats to line up three or more of the same kind. - Cat 2048: Slide and merge equal number tiles as you work toward 2048. - Brick Breaker: Move the paddle, bounce the cat ball, and break the bricks. Build a collection of your own Discover 13 cat collection levels. Earn Churu, the in-game currency shown as 츄르, through play, achievements, and daily missions. Spend it on cat skins that change appearances, not game rules or rewards. No account is needed. The core games work offline, and progress such as your collection, Churu, skins, and best score is saved on your device. There are no online leaderboards, social features, or in-app purchases. About ads Ads need an internet connection and may not always be available. Optional rewarded ads offer one continue per merge run ended by overflow, or an extra mini-game reward equal to the Churu earned, capped at 500 extra Churu. Interstitial ads may appear after some completed merge runs. You can still play the core games when ads aren't available. Language The game interface and instructions are in Korean. This English listing describes the game; it doesn't add an English interface.
Screenshots
Verdict
The clearest difference is ads: MDonkey at none against HaruCat's shown. MDonkey also leads on update cadence (daily vs every 2 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
MDonkey ships an update daily, HaruCat every 2 months. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.
| Parameter | MDonkey | HaruCat |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 2 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | PENG LI | YE HEON GWON |
In-app purchases
MDonkey
No in-app purchases
HaruCat
No in-app purchases









