Biphase vs Milthm
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Biphase
This 2D platformer uses exploration and puzzles to depict the experience of bipolar disorder. Players navigate abstract mental landscapes, switching between red and black worlds representing manic and depressive states, to find an exit and foster empathy.
- 2D platform jumping
- Exploration and puzzles
- Abstract mental world navigation
- Dual-phase color switching mechanic
- Realistic depiction of bipolar disorder
- Empathy-building narrative
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Game Genre: Biphase, developed by several college students from different universities, is a 2D platform jumping game with exploration and puzzles as its core. Our Message: We hope that the game can show the plight of some bipolar patients in a realistic and in-depth way by depicting an "individual" in a group, in addition to popularizing the phenomenon related to the disease. We are trying to trigger the public's empathy through the individual's narrative, and call on the public to adopt a more understanding and tolerant attitude towards patients with bipolar disorder. Abstract Narration: The narration part of this game was based on real cases around the player, mainly about the main character with bipolar disorder, who explores the abstract world of red and black mental images to find an exit. Puzzle Levels: The level process is a metaphor for the condition "bipolar disorder". The main components of the scene, red and black, fade into the background of the same color, just as people wrapped in extreme emotions often fail to perceive the whole picture. The red and black worlds in the game refer to the "manic" and "depressive" mood poles of bipolar disorder, and the characters are in a world divided by two levels of emotions. How to Play: In the level, players manipulate the main character to move left and right, jump, press the switch, jump to change the background color. Players switch back and forth in the red and black dual-phase mental image world, and interact with the scene components with different states of passage in the two colors of the background, when the scene components and the background color is the same, the components are in non-interactive state; when the scene components and the background color is opposite, the components are interactive state. Players gradually explore the path to the end in the switching of red and black. Follow us at: Facebook: @BiphaseGame Twitter: @BiphaseG Instagram: @biphasegame Special thanks to: DBSA(Depression and Bipolar Support Alliance)
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 monetization model: Milthm at free against Biphase's paid. Milthm also leads on review sentiment (92% vs 56%) and ratings volume (272 vs 9). Biphase's advantage is iOS requirement (10.0 vs 15.0). On price, rating, update cadence and ads 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 4.8. That said, the two scores are not equally well evidenced: Milthm has 272 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 56% of Biphase's written reviews are positive against 92% of Milthm's.
Biphase ships an update fortnightly, Milthm every 2 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.
| Parameter | Biphase | Milthm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (9 ratings) | 4.9 (272 ratings) — better |
| Positive reviews | 56.4% of reviews | 92.3% of reviews — better |
| Number of ratings | 9 | 272 — better |
| Update frequency | Fortnightly — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 212 MB | 1.1 GB |
| Age rating | 12+ | 17+ |
| Developer | Seasun Games Corporation Limited | 志琰 陈 |
Customer experience
Biphase
Milthm
Bugs and requests
Biphase
Not enough reviews yet to summarise bugs or requests.
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
Biphase
No in-app purchases
Milthm
No in-app purchases








