IOSU! vs Milthm
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
IOSU!
Enjoy rhythm games by playing your own beatmap files. Supports 4-key and 5x5 key modes, with more to come. Easily upload your custom beatmaps wirelessly from your PC or Mac.
- Play custom beatmap files
- 4 Keys mode
- 5x5 Keys mode
- Wireless beatmap upload
- PC/Mac file transfer
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Play rhythm game with your beatmap files. :) Currently 4 Keys mode & 5x5 Keys mode are available!! Other modes will be available soon!! How to upload Beatmap files! 1. Connect your iDevice and PC(Mac) to the same WI-FI network. 2. Open provided URL on your PC(Mac). 3. Upload your OSZ files.
Milthm
Immerse yourself in a rhythm game with a "Dreams" and "Rain" theme. Enjoy dynamic tracks, a clean UI, and unique replay modes that adjust difficulty. Experience a blend of music, animation, and challenging gameplay.
- Clean UI design with rain theme
- Dream replay mode with adjustable difficulty
- Vivid chart design
- High-quality music tracks
- Wonderful Trial for automatic restart
- Fade out notes for increased challenge
- Downpour mode for chaotic gameplay
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Milthm is a non-commercial rhythm game powered by passion, featuring dynamic tracks and notes. The game is themed around "Dreams" and "Rain". 1. Clean and simple UI design The UI complements the theme of "rain", immersing players in the charming world of rain. 2. Unique and enjoyable dream replay mode The ripples of the dream enhance the game's challenge and fun. If you're frustrated with missing notes, you can choose "Wonderful Trial" to automatically restart on a miss or bad. If you want to increase the difficulty and challenge yourself, you can choose "Fade out" to make notes vanish when approaching. If you're in the mood for a chaotic game-play, you can choose "Downpour" to rain down a massive number of raindrop notes. 3. Enjoyful and vivid chart design Chart designs that combine the emotions of the music and the story, providing a visual and auditory feast. It's not just a game; it's a wholehearted experience where animation and music intertwine to bring you unprecedented joy. Whether you're a beginner or a rhythm game expert, you'll find endless fun in the game. 4. Amazing and high-quality music tracks The music tracks in the game convey different musical styles and emotions. The musical talent of the artists will create an immersive auditory experience. The in-game music will become your companion, leading you into its world.
Screenshots
Verdict
The clearest difference is rating: Milthm at 4.9 against IOSU!'s 4.1. Milthm also leads on review sentiment (92% vs 63%). IOSU!'s advantage is iOS requirement (9.0 vs 15.0). On price, ratings volume, ads and in-app purchases 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.
Milthm holds the better App Store score, 4.9 against 4.1. Both are backed by a comparable volume of ratings — 349 and 275 respectively. Written reviews point the same way: 63% of IOSU!'s written reviews are positive against 92% of Milthm's.
| Parameter | IOSU! | Milthm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (349 ratings) | 4.9 (275 ratings) — better |
| Positive reviews | 63.1% of reviews | 92.3% of reviews — better |
| Number of ratings | 349 — better | 275 |
| Update frequency | — | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 32 MB | 1.1 GB |
| Age rating | 4+ | 17+ |
| Developer | Float32 Inc | 志琰 陈 |
Customer experience
IOSU!
Milthm
User reviews
IOSU!
From 349 App Store ratingsWhat we love
- 🎮 Best osu!mania port available for iOS
- 📥 Easy .osz file import and drag-and-drop functionality
- 🎯 Accurate beatmap emulation and auto-mapping
- 🎨 Multiple game modes (4k, 7k, 5x5)
- ⚡ Smooth performance and responsive gameplay
Room to improve
- 📱 Forced portrait mode limits playability
- 🔗 Broken URL/server for beatmap uploads
- 🎵 Only one default song included
- ⚙️ Lack of customization options
- 🎯 Inconsistent hit registration
Milthm
From 275 App Store ratingsWhat we love
- 🎵 Excellent song variety and quality
- 🎨 Beautiful UI design and visual effects
- ⚡ Smooth and polished gameplay experience
- 🎯 Unique and creative charting style
- 💰 No gacha, ads, or pay-to-win mechanics
Room to improve
- 🐛 Frequent crashes and black screen issues
- 📱 Compatibility problems with older iOS devices
- ⚙️ Occasional frame rate stuttering and lag
- 🎯 Overly strict S-rank requirements (all perfect needed)
- 🔧 Hitbox detection inconsistencies
Bugs and requests
IOSU!
Reported bugs
9 issues- URL server returns 'no' or 'forbidden' error when uploading beatmaps
- Cannot add beatmaps after reinstalling app
- Some beatmaps fail to load completely
- Hold note patterns render incorrectly
- Notes appear late or underneath hit zone at song start
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- Inconsistent hit registration and accuracy detection
- Song deletion via website doesn't work
- App crashes or becomes unusable after certain operations
- Notch support issues on newer phones
Requested features
20 requests- Landscape mode support
- Custom scroll speed adjustment
- Skin customization and import
- Audio delay/offset adjustment
- Hit sounds
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- No-fail mode
- Song rate modifiers (1.1x, 1.2x, etc.)
- Mods system (Hard Rock, etc.)
- Standard osu! mode
- More default songs
- Score system instead of letter grades
- Haptic feedback
- Bluetooth headset delay compensation
- Global ranking system
- In-app beatmap download from osu website
- Support for simfiles
- 3-key mode
- Free play without fail condition
- Song offset feature
- Windows file upload support
Milthm
Reported bugs
6 issues- App crashes on startup or black screen freeze
- Crashes when playing specific charts (e.g., mornflutter, Downpour)
- 404 cloudburst error preventing song playback
- Incompatibility with iPad Air 1 and older iOS versions
- Game freezes at splash screen
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- Occasional frame drops during gameplay
Requested features
6 requests- Cloud save/account synchronization
- Chinese mainland server launch
- Notch and Dynamic Island optimization settings
- Screen edge width adjustment for gameplay
- More lenient rating system (full combo instead of all perfect)
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- Expanded story chapters
In-app purchases
IOSU!
No in-app purchases
Milthm
No in-app purchases








