Comparison

MIDI Controller/Oscilloscope vs Vocal Polish

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

Head to head
About

MIDI Controller/Oscilloscope

This app combines a multi-touch performance keyboard, a 16-channel step sequencer, and a real-time oscilloscope. It allows seamless integration with hardware synthesizers and audio gear via USB, enabling music creation and analysis.

Highlights
  • Multi-touch velocity-sensitive keyboard
  • 16-channel step sequencer with piano roll
  • Real-time 8-channel oscilloscope
  • USB MIDI and audio interface support
  • Network and Bluetooth MIDI compatibility
  • Live recording and transposition
  • Sub-millisecond sequencer timing
Features
Read full description

A powerful all-in-one studio companion for hardware synthesizers, drum machines, and audio gear. Connect your USB MIDI devices and audio interfaces and start playing, sequencing, and analyzing instantly. KEYS — Multi-Touch Performance Keyboard • 3-octave velocity-sensitive piano with multi-finger support • Velocity from touch position — soft on top, loud at the bottom • Spring-loaded pitch bend wheel (14-bit precision) • Mod wheel (CC#1) for expressive control • Program change selector with quick recall • Octave shifting from -2 to +5 • Per-channel routing to different synths • Transpose mode — keyboard transposes the live sequence SEQ — 16-Channel Step Sequencer • 16 independent MIDI channels, up to 32 steps each • Mono mode for melody and bass lines • Poly mode with full piano roll editor • Swing control for groove (0-50%) • Live recording from your external keyboard • MIDI clock sync — auto-detects tempo from incoming clock • Per-channel destination routing — each track plays a different synth • Live transpose during playback • Adjustable note range and pattern length SCOPE — Real-Time Multi-Channel Oscilloscope • Up to 8 channels simultaneously from USB audio interfaces • 1-2-5 standard time/division (10 microseconds to 500 ms) • Configurable voltage/division with auto-scale • Rising and falling edge trigger with adjustable level • Auto and Normal trigger modes • Per-channel color, vertical offset, and on/off • Phosphor persistence with adjustable decay • Glow effect with intensity control • Three background themes — Classic, Space, Shockwave • Metal-accelerated rendering CONNECTIVITY • USB MIDI — plug in your hardware controllers and synths • USB audio interfaces — multi-channel input for the oscilloscope • Network MIDI / Bluetooth MIDI compatible • Companion iPhone app — record video while iPad captures audio over Wi-Fi (Bonjour) DESIGNED FOR PERFORMANCE • Sub-millisecond sequencer timing • Lock-free audio buffers for glitch-free capture • Optimized for iPad landscape — full immersive UI • Per-app settings for every channel, every parameter, persistent across sessions Whether you're sketching ideas in the studio, performing live, debugging a Eurorack patch, or learning synthesis, this app brings keyboard, sequencer, and oscilloscope into a single, fast, focused interface. No ads. No subscriptions. No accounts. Just plug in and play.

About

Vocal Polish

Record and enhance your singing locally without needing an internet connection. This app offers various presets and effects to make your voice sound cleaner and smoother. Compare your original and polished takes, then export the improved audio.

Highlights
  • Offline vocal recording
  • Smart vocal enhancement
  • Before and After comparison
  • Customizable recording names
  • Background noise reduction
  • Vocal presets and effects
  • Export enhanced WAV audio
Features
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Vocal Polish is an offline singing recorder that helps your voice sound cleaner, smoother, and more polished. Record a dry vocal take, enhance it on your device, compare Before and After, then export the improved version. It is built for casual singers who want a quick vocal polish without accounts, servers, or complicated studio tools. Features: - Record your singing as a local dry vocal - Enhance vocals offline with Smart Polish - Compare Before and After playback - Save multiple recordings with custom names - View simple waveforms for your takes - Reduce steady background noise - Choose vocal presets for different sounds - Try fun effects like Karaoke Room echo - Export the enhanced WAV audio - Keep original dry recordings available Preset options include Smart Polish, Natural Polish, Studio Echo, Bright Pop, Warm Radio, Soft Ballad, Dream Room, and Karaoke Room. Vocal Polish does not provide live microphone monitoring, live karaoke speaker routing, pitch correction, accounts, or cloud processing. Your recordings are processed locally on your device for a simple offline vocal enhancement workflow.

Screenshots

MIDI Controller/Oscilloscope3 screens
Vocal Polish4 screens

Verdict

The call

The clearest difference is in-app purchases: MIDI Controller/Oscilloscope at none against Vocal Polish's 1. Vocal Polish's advantage is iOS requirement (13.0 vs 17.0). On price, rating, ratings volume 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

Both are free to download. Vocal Polish sells 1 one-off in-app purchase. MIDI Controller/Oscilloscope asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for MIDI Controller/Oscilloscope against 5.0 for Vocal Polish. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard2 real differences · 7 level
MIDI Controller/Oscilloscope versus Vocal Polish: the parameters behind the verdict, then further details
ParameterMIDI Controller/OscilloscopeVocal Polish
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.013.0 — better
Further details — not scored
Size1 MB24 MB
Age rating4+4+
DeveloperCollective Vision, LLC.Space 64 LLC

In-app purchases

None

MIDI Controller/Oscilloscope

No in-app purchases

1 purchases

Vocal Polish

One-time1
  • Vocal Polish Pro$4.99

Questions

Is MIDI Controller/Oscilloscope free?
MIDI Controller/Oscilloscope is free to download, with no in-app purchases.
Is Vocal Polish free?
Vocal Polish is free to download, with in-app purchases available.
Which has better reviews, MIDI Controller/Oscilloscope or Vocal Polish?
MIDI Controller/Oscilloscope and Vocal Polish are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do MIDI Controller/Oscilloscope or Vocal Polish have ads?
Neither MIDI Controller/Oscilloscope nor Vocal Polish shows ads.

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