Comparison

GrainProc vs Arctic ProSynth

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

Head to head
About

GrainProc

Create unique sounds and musical textures in real-time by processing external audio. This app features two parallel granular engines for layering sounds, offering a versatile tool for musicians and sound designers.

Highlights
  • Real-time granular synthesis
  • Two parallel grain engines
  • AudioBus input support
  • Waveform sound source manipulation
  • Control over volume, feedback, and density
  • Visual level monitoring
Features
Read full description

GrainProc is a real-time granular synthesizer with which you can create new sounds and musical textures by affecting your voice, your instrument, or any input from AudioBus. 2 grain engines run in parallel, allowing you to layer two sounds and create rich textures, even as a solo performer! Features: • 2 Granular synthesizers running in parallel • Waveform representation of the sound allowing you to touch where you want the sound source to be • Sliders to control dry volume, wet volume, feedback level, and grain density • Visual level monitors of the dry, wet and feedback levels • Simple enough to be used with your feet! We discourage using your device with your feet, though it has been used that way for public performances!

About

Arctic ProSynth

Create bold and tough electronic music with a modern subtractive synthesizer. Explore rich sound design with powerful oscillators, dual filters, and versatile effects. Record and share your creations easily.

Highlights
  • HyperOscillators for fat sounds
  • Dual multi-mode filters
  • Master effects with adjustable order
  • Integrated Vocoder
  • 16x4 gated step sequencer
  • Live audio and MIDI recording
  • Preset and bank sharing
Read full description

Be rude. Be rough. Be bold. Be tough! Arctic Pro Synthesizer / Vocoder is a modern subtractive synthesizer. It does not aim to accurately model or re-create vintage synths of yesteryear. Instead Arctic Pro offers the contemporary synthesist a rude, rough, bold and tough palette of sound to get stuck into. Including two massively fat HyperOscillators, dual filters, and easy to re-order master effects. While the Vocoder, used in conjunction with a suitable microphone, adds an extra dimension to your musical performance. HyperOscillators =========== Combine two HyperOscillators and one Sub Oscillator for some seriously fat sounds. Layer up to 8 oscillators in unison to create very thick and powerful tones. Spread detune and Mix these separate oscillators in real-time. More than just a "SuperSaw" - it's also a Super-square and Super-triangle. Powerful Presets =========== Legendary sound designer John ‘Skippy’ Lehmkuhl has exclusively designed the factory presets. John has worked as a professional sound designer since 1988 for Korg - making patches, combinations, drum kits as well as creating the sample data for almost every synth Korg has released since the M1. If you have owned one of these historic synthesizers you have heard John's presets. Sharing ===== Arctic Pro includes everything you need to record and share your audio and MIDI with others. Live record to WAV and MIDI files. Use AudioCopy, open audio directly in apps, or share with Kymatica AudioShare. Presets and Banks can be emailed and transferred via Wi-Fi and iTunes Files Sharing. And of course we also support Audiobus. SPECIFICATION ========== • Synthesis: analog modelling • Polyphony: up to 4 voices • HyperOscillators: 2 per voice, alias free, saw, triangle and square with pulse width, hard sync, ring mod, noise generator, sub-oscillator • Filter: 2 multi-mode resonating filter with 4 filter types and variable routing • Envelopes: mod, filter and amp ADSR envelopes with adjust curve • Modulation: 2 LFOs with multiple wave shapes, sample and hold, 3 routable destinations per LFO, independently sync-able • Effects: stereo master effect processors with adjustable order: 3-band EQ, Distortion, Chorus, Phaser, Vocoder, Delay, Reverb • Arpeggiator: classic arpeggiator with octave shift, MIDI-sync-able • Sequencer: 16 x 4 gated step sequencer with multiple modulation destinations, MIDI-sync-able • Keyboard: glissando, scroll, multi-touch poly pitch bend and aftertouch • Works with Wizdom Music's Geo Synthesizer continuous pitch bend • Polyphonic Aftertouch for use with CME Xkey FEATURES ======== • Inter-App Audio for iOS 7 • Audiobus • AudioCopy 2.0 • MIDI Learn • Live phrase recorder with audio and MIDI export • File and patch sharing via iTunes File Sharing, e-mail and Wi-Fi • Supports external MIDI in and out via CoreMIDI Networking and USB with the Camera Connection Kit • Audio background operation • Virtual MIDI Ports • Open Music App Collaboration compliant Requirements: iPad 2 or later recommended iOS 7.0 or later

Screenshots

GrainProc4 screens

Verdict

The call

The clearest difference is rating: GrainProc at 4.1 against Arctic ProSynth's 3.3. GrainProc also leads on price ($2.99 vs $9.99). Arctic ProSynth's advantage is review sentiment (71% vs 60%). On ratings volume, update cadence, ads and in-app purchases 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

GrainProc costs $2.99 and Arctic ProSynth $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

GrainProc holds the better App Store score, 4.1 against 3.3. Both are backed by a comparable volume of ratings — 17 and 8 respectively. Written reviews complicate that: 60% of GrainProc's written reviews are positive against 71% of Arctic ProSynth's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

GrainProc ships an update every 2 months, Arctic ProSynth every 4 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
GrainProc versus Arctic ProSynth: the parameters behind the verdict, then further details
ParameterGrainProcArctic ProSynth
Price$2.99 — better$9.99
Rating4.1 (17 ratings) — better3.3 (8 ratings)
Positive reviews60.0% of reviews71.4% of reviews — better
Number of ratings17 — better8
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad — betteriPad
Requires iOS16.015.6 — better
Further details — not scored
Size6 MB47 MB
Age rating4+4+
DeveloperMayank SanganeriaOne Red Dog Media Pty Ltd

Customer experience

GrainProc

All ratings16 ratings
Positive75.0%
Neutral6.3%
Negative18.8%
Written reviews30 reviews
Positive60.0%
Neutral13.3%
Negative26.7%

Arctic ProSynth

All ratings8 ratings
Positive50.0%
Neutral12.5%
Negative37.5%
Written reviews28 reviews
Positive71.4%
Neutral3.6%
Negative25.0%

In-app purchases

None

GrainProc

No in-app purchases

None

Arctic ProSynth

No in-app purchases

Questions

Is GrainProc free?
GrainProc costs $2.99, with no in-app purchases.
Is Arctic ProSynth free?
Arctic ProSynth costs $9.99, with no in-app purchases.
Which has better reviews, GrainProc or Arctic ProSynth?
GrainProc is rated higher. GrainProc averages 4.1 out of 5 from 17 ratings, while Arctic ProSynth averages 3.3 from 8 ratings.
Do GrainProc or Arctic ProSynth have ads?
Neither GrainProc nor Arctic ProSynth shows ads.
Which is updated more often, GrainProc or Arctic ProSynth?
GrainProc ships an update every 2 months, and Arctic ProSynth every 4 months. Most recently, GrainProc was updated on October 13, 2026 and Arctic ProSynth on October 15, 2026.

Other comparisons