Comparison

Ferromagnetic vs Crate.

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

Head to head
About

Ferromagnetic

Transform music into real-time visual art with dynamic audio-reactive effects. Enhance personal listening, create ambiance for gatherings, or perform live with captivating visuals that sync to every beat. Offers thousands of unique visual combinations for a fresh experience with every song.

Highlights
  • Real-time audio-reactive visuals
  • Multi-band frequency analysis
  • Automatic beat detection
  • Metal-powered rendering engine
  • Multi-layer compositing system
  • Customizable visual parameters
  • Thousands of unique visual combinations
Features
Read full description

Ferromagnetic: The Next Generation Music Visualizer Transform your music into stunning real-time visual art. Whether you're enhancing your personal listening experience, creating ambiance for gatherings, or performing live, Ferromagnetic delivers captivating audio-reactive visuals that respond to every beat and note. Effortless Audio Visualization Ferromagnetic brings visual dimension to your listening experience. The app captures sound and responds dynamically using multi-band frequency analysis with automatic beat detection, creating immersive visual effects that react to the music in real-time. Powered by a Metal powered rendering engine, Ferromagnetic generates smooth, mesmerizing visuals through a multi-layer compositing system. Audio-reactive particles burst, flow, and dance in perfect sync with your music. Every visual parameter—from particle density and motion speed to glitch intensity, color palettes, and blur effects—can respond to audio amplitude or specific frequency ranges, creating a truly dynamic experience. The powerful engine generates thousands of unique visual combinations in real-time, ensuring that every song creates its own distinct visual journey. Intricate patterns, vibrant colors, and fluid animations evolve continuously, making each listening session a fresh experience. Perfect for Any Setting Use Ferromagnetic to enhance your personal listening sessions at home, create engaging background visuals at parties and gatherings, provide ambient atmosphere for cafes and creative spaces, or add visual impact to live DJ sets and musical performances. The intuitive interface gets you started immediately, no complicated setup or technical knowledge required. Choose from subtle, meditative patterns for focused listening or bold, immersive effects for maximum visual impact. Experience music in a completely new dimension with Ferromagnetic. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

Crate.

Organize your music collection by creating digital record shelves. Review albums, track your listening habits, and discover new music through friends, focusing on personal taste over algorithms.

Highlights
  • Build and share curated album collections
  • Write album reviews and star ratings
  • Log daily music listening history
  • Discover music through friends' tastes
  • Follow and collaborate with other users
Features
Read full description

Crate is for people who still listen. Albums matter. They outlast trends, playlists, and charts. Crate lets you build your own record shelf with collections called crates. Review what you hear, keep a diary of your spins, and see what your friends are into. It's about taste, not algorithms. About the albums you choose to keep. Features • Build and share crates, curated collections of albums • Write reviews and star-rate your listens • Keep a music diary of your daily spins • Discover underground favorites through friends, not algorithms • Follow, like, and collaborate with others in the scene This is not for everyone. Only for those who still listen.

Screenshots

Ferromagnetic4 screens
Crate.4 screens

Verdict

The call

The clearest difference is rating: Ferromagnetic at 4.0 against Crate.'s 3.4. Ferromagnetic also leads on ads (none vs shown) and ratings volume (24 vs 8). Crate.'s advantage is in-app purchases (none vs 6) and review sentiment (92% vs 80%). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Ferromagnetic sells 6 in-app purchases, starting at $2.49 per month. Crate. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Ferromagnetic holds the better App Store score, 4.0 against 3.4. Both are backed by a comparable volume of ratings — 24 and 8 respectively. Written reviews complicate that: 80% of Ferromagnetic's written reviews are positive against 92% of Crate.'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Ferromagnetic ships an update every 11 days, Crate. every 2 weeks. The most recent releases landed on September 26, 2026 and September 11, 2026 respectively.

Scorecard6 real differences · 4 level
Ferromagnetic versus Crate.: the parameters behind the verdict, then further details
ParameterFerromagneticCrate.
PriceFreeFree
Rating4.0 (24 ratings) — better3.4 (8 ratings)
Positive reviews79.7% of reviews92.3% of reviews — better
Number of ratings24 — better8
Update frequencyEvery 11 days — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size20 MB58 MB
Age rating4+9+
DeveloperDaniel EkeMustafa Kaan Baaran

Customer experience

Ferromagnetic

All ratings24 ratings
Positive75.0%
Neutral4.2%
Negative20.8%
Written reviews69 reviews
Positive79.7%
Neutral7.2%
Negative13.0%

Crate.

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews13 reviews
Positive92.3%
Neutral0.0%
Negative7.7%

Bugs and requests

Ferromagnetic

Reported bugs

14 issues
  • Song titles don’t update
  • Custom image wasn’t saving in presets (reported fixed)
  • Logo makes imported images blurry
  • App crashes on launch
  • Poorly implemented controls (MacOS)
Show 9 more
  • Does not work with Apple Music for some users
  • Does not sync with music for some users
  • Repeating visualizer scenes
  • Shoddy integration with Streamlabs
  • Does not work with microphone for some users
  • Visuals are seemingly random and endless
  • App asks to update when there's no update
  • Crashes every time audio input is changed after update
  • Recurring shapes pop up every few seconds

Requested features

20 requests
  • Add a 'go back' button for controls
  • Add Airplay mirroring or tvOS app
  • More options in visualizer types
  • Configurable presets for cycling settings
  • Ability to stream to TV without a cable
Show 15 more
  • Apple TV app development
  • More shaders and 4k-8k resolution options
  • More options to customize and create own shaders
  • More style options (e.g., retro equalizer, symmetric bars)
  • Ability to navigate a catalog or favorite visuals
  • Rotation feature for effects
  • Output to a file without screen capture
  • Choose output frame rate and size
  • Get rid of or manipulate recurring shapes
  • Remove Source/editor column from viewer window
  • Option to load songs directly from user's library
  • Transparency option for windows
  • More customization options
  • Effects inspired by Apple's classic visualizer
  • Bug fix for audio input crashes

Crate.

Not enough reviews yet to summarise bugs or requests.

In-app purchases

6 purchases

Ferromagnetic

Subscriptions2
  • FM Visualizer7 Days trial$2.491 Month
  • FM Producer3 Days trial$3.991 Month
One-time4
  • A generous tip$0.99
  • FM Visualizer One-TIme$17.99
  • FM Producer Upgrade$39.99
Show 1 more
  • FM Producer One-Time$59.99
None

Crate.

No in-app purchases

Questions

Is Ferromagnetic free?
Ferromagnetic is free to download, with in-app purchases available.
Is Crate. free?
Crate. is free to download, with no in-app purchases.
Which has better reviews, Ferromagnetic or Crate.?
Ferromagnetic is rated higher. Ferromagnetic averages 4.0 out of 5 from 24 ratings, while Crate. averages 3.4 from 8 ratings.
Do Ferromagnetic or Crate. have ads?
Crate. shows ads; Ferromagnetic does not.
Which is updated more often, Ferromagnetic or Crate.?
Ferromagnetic ships an update every 11 days, and Crate. every 2 weeks. Most recently, Ferromagnetic was updated on September 26, 2026 and Crate. on September 11, 2026.

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