GrainProc vs LH Grain
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!
LH Grain
Create intricate soundscapes and dynamic audio effects with a dual-channel granular synthesizer. Features include diverse amplitude envelopes, extensive audio effects, and intuitive live performance tools like a touchpad and customizable pitch bar.
- Dual-channel granular synthesis
- 8 amplitude envelope options
- 10 integrated audio effects
- Real-time touchpad control
- Customizable pitch bar
- OSC compatibility
- Record and share sound files
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LH Grain: A Dual-Channel Granular Synthesizer for Live Performance Mastery Unleash your creative potential with LH Grain, an innovative two-channel granular synthesizer designed for both immersive soundscapes and dynamic live performances. Each channel operates independently, allowing for intricate granular textures and rich audio effects. Key Features: *Amplitude Envelope Diversity: Choose from 8 unique amplitude envelopes for crafting your grains, offering a spectrum of wave shapes for unparalleled sound design. *Extensive Audio Effects: Elevate your sound with 10 integrated audio effects, ranging from EQ and formant filters to chorus and reverb, adding layers of complexity to your sonic creations. *Intuitive Live Performance Tools: --Touchpad Control: Visualize and manipulate grains in real-time with a responsive touchpad interface. --Customizable Pitch Bar: Fine-tune your sound with an easily adjustable pitch bar for on-the-fly modifications. *OSC Compatibility: Seamlessly integrate with other devices in real-time using OSC format messages, enhancing live collaboration and interaction. *Robust File Management: Record your creations, and easily share sound files for collaborative projects or personal archiving. Please Note: LH Grain currently does not support Audiobus, external sound recording, or importing additional audio files. Explore Rich Soundscapes with Advanced FX: Immerse in deep audio manipulation with a suite of FX including EQ, Formant Filter, Ring Modulation, Low Pass Filter, MultiFilter, Chorus, Flanger, Distortion, Delay, and Reverb. Each effect is fine-tuned to complement the granular synthesis process, ensuring your performance stands out. Elevate your audio experience with LH Grain – where innovation meets artistry in the realm of granular synthesis.
Screenshots
Verdict
The clearest difference is rating: GrainProc at 4.2 against LH Grain's 2.3. GrainProc also leads on review sentiment (60% vs 25%) and update cadence (every 2 months vs every 15 months). LH Grain's advantage is iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and monetization model 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 LH Grain $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GrainProc holds the better App Store score, 4.2 against 2.3. That said, the two scores are not equally well evidenced: GrainProc has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of GrainProc's written reviews are positive against 25% of LH Grain's.
GrainProc ships an update every 2 months, LH Grain every 15 months. Both last shipped on October 23, 2026.
| Parameter | GrainProc | LH Grain |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 4.2 (18 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 60.0% of reviews — better | 25.0% of reviews |
| Number of ratings | 18 — better | 3 |
| Update frequency | Every 2 months — better | Every 15 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Mayank Sanganeria | 昊 刘 |
Customer experience
GrainProc
LH Grain
In-app purchases
GrainProc
No in-app purchases
LH Grain
No in-app purchases









