GrainProc vs LOOPBAR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Real-time granular synthesis
- Two parallel grain engines
- AudioBus input support
- Waveform sound source manipulation
- Control over volume, feedback, and density
- Visual level monitoring
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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!
LOOPBAR
Record and layer multiple audio tracks in real time to build musical ideas. This tool allows for precise loop point setting and adjustment during playback, perfect for capturing inspiration on the go.
- Create multiple independent audio tracks
- Record via built-in microphone
- Set individual loop points with drag & drop
- Real-time playback with visual indicator
- Adjust loop points during playback
- Simple track management
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Create audio loops in real time! Record multiple tracks, set individual loop points and build your musical ideas layer by layer. LOOPBAR is your creative tool for audio loops on iPhone and iPad. Capture ideas on the spot, set precise loop points and layer multiple tracks on top of each other. FEATURES: • Create multiple independent audio tracks • Record directly via the built-in microphone • Set individual loop points with drag & drop • Real-time playback position with visual indicator • Adjust loop points during playback • Play and stop all tracks simultaneously • Simple track management with add and delete Perfect for musicians, songwriters and anyone who wants to quickly capture musical ideas and build loops.
Screenshots
Verdict
The clearest difference is rating: LOOPBAR at 5.0 against GrainProc's 4.1. LOOPBAR also leads on update cadence (every 3 weeks vs every 2 months) and price ($0.99 vs $2.99). GrainProc's advantage is ratings volume (17 vs 1) and iOS requirement (16.0 vs 18.5). On ads, in-app purchases, monetization model and device support 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
GrainProc costs $2.99 and LOOPBAR $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
LOOPBAR holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: GrainProc has 17 ratings behind it against 1, so its average is the more settled of the two.
GrainProc ships an update every 2 months, LOOPBAR every 3 weeks. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.
| Parameter | GrainProc | LOOPBAR |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 4.1 (17 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.0% of reviews | — |
| Number of ratings | 17 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 6 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayank Sanganeria | Helge Ohl |
Customer experience
GrainProc
LOOPBAR
In-app purchases
GrainProc
No in-app purchases
LOOPBAR
No in-app purchases









