Comparison

Protocol vs Milthm

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Protocol

Experience a unique rhythm game set in a musical hyperspace. Enjoy tense 3D note patterns synchronized with music from famous artists and popular game soundtracks. Optimized for smartphones and tablets.

Highlights
  • Unique 3D visual note patterns
  • Music from famous artists
  • Soundtracks from popular games
  • Optimized for smartphone/tablet
  • Tense rhythm gameplay
Features
Read full description

The feast of rhythm and beat in the Hyperspace! New kind of rhythm game Protocol : hyperspace Diver is Released! Let's DIVE into musical hyperspace ▶ Providing unique visual and tense note pattern in 3D space ▶ Music Dive with splendid music of famous artist such as ESTi / M2U / TAK / SQUARE MUSIQ... ▶ You can play Masterpiece of music from "Dragon flight / Destiny child" - popular games of NextFloor ▶ Play newest rhythm game optimized in Smartphone / Tablet Now! * Due to latency of the sound system, beat sync would not fit perfectly with Bluetooth devices. Using wired earphone or headphone is recommended.

About

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.

Highlights
  • 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
Read full description

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

Protocol4 screens
Milthm4 screens

Verdict

The call

The clearest difference is rating: Milthm at 4.9 against Protocol's 4.2. Milthm also leads on update cadence (every 2 weeks vs every 3 months) and review sentiment (92% vs 79%). Protocol's advantage is iOS requirement (9.0 vs 15.0). On price, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Milthm holds the better App Store score, 4.9 against 4.2. That said, the two scores are not equally well evidenced: Milthm has 275 ratings behind it against 53, so its average is the more settled of the two. Written reviews point the same way: 79% of Protocol's written reviews are positive against 92% of Milthm's.

UpkeepUpdate frequency

Protocol ships an update every 3 months, Milthm every 2 weeks. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

Scorecard5 real differences · 5 level
Protocol versus Milthm: the parameters behind the verdict, then further details
ParameterProtocolMilthm
PriceFreeFree
Rating4.2 (53 ratings)4.9 (275 ratings) — better
Positive reviews78.5% of reviews92.3% of reviews — better
Number of ratings53275 — better
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size274 MB1.1 GB
Age rating4+17+
DeveloperLINE Games志琰 陈

Customer experience

Protocol

All ratings53 ratings
Positive77.4%
Neutral7.5%
Negative15.1%
Written reviews149 reviews
Positive78.5%
Neutral6.7%
Negative14.8%

Milthm

All ratings275 ratings
Positive97.8%
Neutral0.7%
Negative1.5%
Written reviews220 reviews
Positive92.3%
Neutral3.6%
Negative4.1%

Bugs and requests

Protocol

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
Show 1 more
  • 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)
Show 1 more
  • Expanded story chapters

In-app purchases

None

Protocol

No in-app purchases

None

Milthm

No in-app purchases

Questions

Is Protocol free?
Protocol is free to download, with no in-app purchases.
Is Milthm free?
Milthm is free to download, with no in-app purchases.
Which has better reviews, Protocol or Milthm?
Milthm is rated higher. Protocol averages 4.2 out of 5 from 53 ratings, while Milthm averages 4.9 from 275 ratings.
Do Protocol or Milthm have ads?
Neither Protocol nor Milthm shows ads.
Which is updated more often, Protocol or Milthm?
Protocol ships an update every 3 months, and Milthm every 2 weeks. Most recently, Protocol was updated on September 23, 2026 and Milthm on September 25, 2026.

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