Comparison

Velocity Keyboard 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

Velocity Keyboard

This app offers a versatile MPE MIDI controller with advanced velocity sensing and multiple interface layouts. It provides extensive MIDI CC control and flexible modes for both MPE and non-MPE synthesizers, enhancing musical expression.

Highlights
  • Advanced velocity sensing algorithm
  • Four interface layouts (Keyboard, String, Scale, Drum Pad)
  • Standalone app and Audio Unit support
  • 8 simultaneous MIDI CC sources
  • Smooth MIDI pitch bending
  • Custom scale highlighting
  • Pitch bend correction algorithm
Features
Read full description

Velocity Keyboard is a powerful velocity-sensitive MPE compatible MIDI controller. FEATURES - unique velocity sensing algorithm that tracks touch force like no other app - Four interface layouts: Keyboard, String, Scale, and Drum Pad - runs as an Audio Unit or as a standalone app - 8 simultaneous sources of MIDI CC parameter control: touch area, touch force (on devices that support 3D Touch), touch Y-coordinate, velocity to CC and up to four MIDI CC control knobs - smooth MIDI pitch bending between notes in both string and keyboard layouts - highlight custom scales in any key - dedicated MIDI modes for maximum flexibility when controlling non-MPE compatible synthesizers - pitch bend correction algorithm plays more in-tune with more freedom of expression when bending between notes (compared to similar MIDI controller apps) - can output velocity as a MIDI CC or aftertouch message to better support synths that aren't designed with velocity sensing in mind What does this app do differently from our iFretless apps? - It uses much less RAM because it doesn't load any audio samples - It has MIDI aftertouch controls, so changes in touch pressure and location that occur after after the start of a note can control MIDI CC parameters - It supports highlighting notes in custom scales - It has piano keyboard, scale, and drum pad layout options - It has updated velocity sensing and pitch correction algorithms - It has better visibility, making it feel more playable on smaller screens, or with a larger number of rows and columns

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

Velocity Keyboard3 screens
Prism MIDI Sequencer4 screens

Verdict

The call

The clearest difference is price: Velocity Keyboard at $9.99 against Prism MIDI Sequencer's $19.99. Velocity Keyboard also leads on in-app purchases (none vs 5) and ratings volume (101 vs 33). On rating, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Velocity Keyboard costs $9.99 and Prism MIDI Sequencer $19.99 up front. Prism MIDI Sequencer sells 5 one-off in-app purchases. Velocity Keyboard asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Velocity Keyboard against 4.8 for Prism MIDI Sequencer. Both are backed by a comparable volume of ratings — 101 and 33 respectively. Written reviews are what separate them: 82% of Velocity Keyboard's written reviews are positive against 86% of Prism MIDI Sequencer's.

UpkeepUpdate frequency

Velocity Keyboard ships an update every 9 days, Prism MIDI Sequencer every 2 weeks. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Velocity Keyboard versus Prism MIDI Sequencer: the parameters behind the verdict, then further details
ParameterVelocity KeyboardPrism MIDI Sequencer
Price$9.99 — better$19.99
Rating4.8 (101 ratings)4.8 (33 ratings)
Positive reviews82.2% of reviews85.7% of reviews — better
Number of ratings101 — better33
Update frequencyEvery 9 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size12 MB55 MB
Age rating4+4+
DeveloperBlue Mangoo Consulting Company LimitedTyler Quatraro

Customer experience

Velocity Keyboard

All ratings101 ratings
Positive95.0%
Neutral1.0%
Negative4.0%
Written reviews45 reviews
Positive82.2%
Neutral6.7%
Negative11.1%

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

Velocity Keyboard

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 Velocity Keyboard free?
Velocity Keyboard costs $9.99, 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, Velocity Keyboard or Prism MIDI Sequencer?
Velocity Keyboard and Prism MIDI Sequencer are both rated 4.8 out of 5 on the App Store, from 101 and 33 ratings respectively.
Do Velocity Keyboard or Prism MIDI Sequencer have ads?
Neither Velocity Keyboard nor Prism MIDI Sequencer shows ads.
Which is updated more often, Velocity Keyboard or Prism MIDI Sequencer?
Velocity Keyboard ships an update every 9 days, and Prism MIDI Sequencer every 2 weeks. Most recently, Velocity Keyboard was updated on September 17, 2026 and Prism MIDI Sequencer on September 21, 2026.

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