Comparison

Midi Amuser vs Prism MIDI Sequencer

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

Head to head
About

Midi Amuser

This app allows you to connect, control, and record up to 10 MIDI instruments and controllers across 10 tracks. It manages routing, recalls instrument states, and enables live looping and complex song arrangements with a stable clock and zero latency.

Highlights
  • Connect up to 10 MIDI instruments
  • Connect up to 10 MIDI controllers
  • Zero latency
  • Step sequencer
  • Manage synth patches
  • Record and arrange MIDI events on 10 tracks
  • Arrange up to 16 song parts
Read full description

Midi Amuser lets you connect, control and record up to 10 instruments on 10 tracks with up to 10 input devices. It will take care of your routing, recall your instruments’ CC states across songs and arrangements. It lets you make live loops as well as create complex song arrangements. - make it the center of your MIDI setup - connect up to 10 MIDI instruments - connect up to 10 MIDI controllers - zero latency - stable clock - step sequencer - use a foot switch to record after the fact - manage all your synths’ patches - automatically save and recall Control Change states of your instruments - record, copy, quantise Midi events on up to 10 tracks - arrange up to 16 song parts - make templates for live performances - loop and arrange live - import and export songs

About

Prism MIDI Sequencer

This app is a powerful 16-track MIDI step sequencer designed for iOS devices. It allows users to create complex musical patterns with high resolution, elastic timing, and per-step control. It integrates with external synths and samplers, offering extensive features for melody, harmony, and drum sequencing.

Highlights
  • 16-track AUv3 MIDI step sequencer
  • High resolution and elastic timing
  • Per-step control and step FX
  • Scale modes and flow modes for tonal tracks
  • 16 mini-sequencers per drum track
  • LFOs, arpeggiator, and generative tools
  • Scene and mute profile performance modes
Read full description

Prism is a 16-track AUv3 MIDI step sequencer for iPhone and iPad that turns sparks of inspiration into living, breathing music. It’s built for touch and flow—pair it with your favorite synths, samplers, drum apps, and gear. Key Features ------------- [ Sequencing Engine ] ---------------------- - High resolution: 1/32 steps, up to 512 trigs/pattern, swing, polyphony, micro-timing per step - Elastic timing: per-sequence lengths plus smooth speed changes for real polyrhythm/polymeter - Per-step control: parameter locks and Step FX - Playback modes: Standard, Overlap, Trig Legato, Drone - Capture everything: live record with quantize, retroactive recording (always listening), and tap-in steps - Human feel & probability: Chance, Every, Hold, Range, Accent [ Tonal Tracks (Melody & Harmony) ] ------------------------------------ - Always in key: scale modes across the app (use built-in scales or create your own) - Note input modes: Poly, Chord Simple, Chord Multi, Chord Blocks - Flow modes (musical logic): Standard, Peek, Echo, Melt, Mirror - Per-Trig Step FX: Velocity, Pitch, Ratchet, Strum - Multi-Seq: 4 independent sequencers per tonal track to weave interlocking parts - Import and edit .MIDI files [ Drum Tracks (Kits & Samplers) ] ---------------------------------- - 16 mini-sequencers per drum track with independent settings, FX, and controls - Modular linking, advanced layering, and Drum↔Tone interactions for shared timing tricks - Drum profiles for fast kit routing and universal connectivity - Per-Trig Step FX (drum): Velocity, Length, Ratchet, Flam [ Modulation, Generative & Creative Tools ] ------------------------------------------- - 6 LFOs per track (track-tied and CC-tied) for tempo-synced movement and evolving patterns - Per-track/pattern 16-step Arpeggiator—from classic to experimental - Harmonizer and Hue Sequencer for chord color and phrase rotation - Tape-style MIDI Slicer & Looper (per track/pattern) for instant remixing - Smart randomizers: one-tap generation for drum patterns, sequences, and fx. [ Performance, Workflow & UI ] ------------------------------ - Scenes, mute profiles, and bar looper to play, capture, and perform. - Fast edits: copy, paste, multi-select, quick duplicate - Multi-touch keypad matrix & sequencer for hands-on control - Light & Dark themes - Host-aware saving (internal presets + AUv3 state) [ Hardware & Host Integration ] ------------------------------- - Deep, bi-directional control for Novation Launchpad (Pro, Mk3, Mini, X) and Launchkey Mini MK4 with LED feedback & mappings - External MIDI in/out/thru, per-track channel routing - AUv3 works in leading hosts (e.g., AUM, Logic Pro for iPad) [ Timing & Specs ] ------------------- - High-precision engine: 480 PPQN for tight playback at any tempo - iPhone & iPad AUv3 (MIDI-only; no built-in sounds) ---------- Find more info at sites.google.com/view/prism-midi-sequencer/home Happy creating, y’all. —A Mortal Mage

Screenshots

Midi Amuser4 screens
Prism MIDI Sequencer4 screens

Verdict

The call

The clearest difference is price: Midi Amuser at Free against Prism MIDI Sequencer's $19.99. Midi Amuser also leads on in-app purchases (none vs 5). Prism MIDI Sequencer's advantage is update cadence (every 2 weeks vs every 5 weeks) and ratings volume (34 vs 6). On rating, ads, 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

Midi Amuser is free to download; Prism MIDI Sequencer costs $19.99 up front. Prism MIDI Sequencer sells 5 one-off in-app purchases. Midi Amuser asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Midi Amuser holds the better App Store score, 4.8 against 4.7. That said, the two scores are not equally well evidenced: Prism MIDI Sequencer has 34 ratings behind it against 6, so its average is the more settled of the two.

UpkeepUpdate frequency

Midi Amuser ships an update every 5 weeks, Prism MIDI Sequencer every 2 weeks. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
Midi Amuser versus Prism MIDI Sequencer: the parameters behind the verdict, then further details
ParameterMidi AmuserPrism MIDI Sequencer
PriceFree — better$19.99
Rating4.8 (6 ratings) — better4.7 (34 ratings)
Positive reviews—85.7% of reviews
Number of ratings634 — better
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size4 MB55 MB
Age rating4+4+
DeveloperTilmann SchuepferTyler Quatraro

Customer experience

Midi Amuser

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Prism MIDI Sequencer

All ratings33 ratings
Positive93.9%
Neutral3.0%
Negative3.0%
Written reviews21 reviews
Positive85.7%
Neutral4.8%
Negative9.5%

In-app purchases

None

Midi Amuser

No in-app purchases

5 purchases

Prism MIDI Sequencer

One-time5
  • LFO Extension$4.99
  • Step FX$4.99
  • Multi-Sequencer [Tone Tracks]$4.99
Show 2 more
  • Launchkey Mini MK4 Control$4.99
  • Euclidean Sequencer Extension$4.99

Questions

Is Midi Amuser free?
Midi Amuser is free to download, with no in-app purchases.
Is Prism MIDI Sequencer free?
Prism MIDI Sequencer costs $19.99, and also offers in-app purchases.
Which has better reviews, Midi Amuser or Prism MIDI Sequencer?
Midi Amuser is rated higher. Midi Amuser averages 4.8 out of 5 from 6 ratings, while Prism MIDI Sequencer averages 4.7 from 34 ratings.
Do Midi Amuser or Prism MIDI Sequencer have ads?
Neither Midi Amuser nor Prism MIDI Sequencer shows ads.
Which is updated more often, Midi Amuser or Prism MIDI Sequencer?
Midi Amuser ships an update every 5 weeks, and Prism MIDI Sequencer every 2 weeks. Most recently, Midi Amuser was updated on October 24, 2026 and Prism MIDI Sequencer on October 27, 2026.

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