Scratch Disc vs Hypertron
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scratch Disc
Create unique rhythms and sound effects by scratching audio. Load over 200 sounds or your own music onto up to 12 virtual turntables. Record your performances directly into other music creation apps.
- Up to 12 turntables simultaneously
- Over 200 included sounds
- Scratch with your iTunes library
- AudioBus and Inter-App Audio support
- Record custom sounds
- Paste sounds from other apps
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12 TURNTABLES AND A MICROPHONE ! Take scratching performances to the extreme with superhuman turntablism. Scratch Disc provides up to 12 turntable slots to load any sound imaginable and then scratch scratch scratch it to make rhythms and effects. FEATURE LIST: • Up to 12 spinning discs at once. • Over 200 sounds to scratch with. • Scratch with songs from your iTunes music library. • AudioBus and Inter-App Audio let you record your performances directly into other apps such as GarageBand, Cubasis and Loopy. WITH IN-APP PURCHASE: • More sounds and projects. • Record yourself or other sounds and scratch with them. • Paste sounds from other apps.
Hypertron
Create music on the go with this powerful groovebox. It offers a simple interface for flexible music production, allowing you to trigger pads, tweak effects, arrange samples, and even generate new sounds with AI. Unlock advanced features for a complete production experience.
- AUv3 support
- Live pad triggering
- Sample editing and arrangement
- AI sample generation
- Built-in synthesizer
- Multi-track export
- Ableton Link sync
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Hypertron is a groovebox for iPhone and iPad that combines simple design with powerful tools for flexible music production on the go. SEQUENCER - Create patterns and store them in sequences, takes and groups - Each pad can have an individual bar length of up to 64 bars - Last Step function for each pad, enabling polyrhythms ( with Performance Mode setting ) - Duplicate takes and groups with drag & drop - Switch between 16th and 32nd notes using Split-Step swipe gesture - Play and record melodies with the virtual keyboard and arpeggiator - Get creative with an innovative note repeat slider - Set custom group lengths, measured in bars or steps - Adjust global swing and set the swing amount for each pad - Customize pads, takes and groups with colors and rearrange them using drag & drop - Auto-toggle loops at bar end - Trigger pads in LIVE mode SAMPLER - Record samples using your microphone or USB interface - Generate samples with AI using multiple models to choose from (requires account registration) - Adjust start/end positions and add fade-in and fade-out to your samples - PRO: Slice samples with multi-slice sampling and autoslicing - PRO: Edit samples in the Sample Editor with multiple tools (duplicate, trim, remove, silence, reverse, normalize, pitch, timestretch, volume) - PRO: Import samples (WAV, MP3, MP4, M4A) - PRO: Export samples (WAV) EFFECTS - Add multiple effects to each pad: lowpass, highpass, reverb - PRO effects: bitcrusher, compressor, delay, distortion, phaser, tape, repeater, tremolo, pitch, timestretch, randomizer - PRO: Access additional effect settings - Automate effects with swipe gestures or fine-tune them in the editor - Select and adjust effects on pads using swipe gestures in EFFECTS mode MIXER - Adjust levels and effects in the mixer - PRO: Route outputs to busses and add effects to these busses - Select channel outputs in the Mixer with support for multichannel USB interfaces - Send MIDI OUT separately for each channel - Save your FX selection as default in the Mixer SYNTHESIZER - A simple, yet effective monophonic synthesizer: two oscillators and one LFO, controlling frequency and filter separately - Sync the synthesizer oscillators from 32 bars down to 1/32 notes - PRO: Adjust the synthesizer’s suboscillator, delay, glide parameter and bandpass filter CONNECTIVITY - Sync to other devices with Ableton Link - Connect external MIDI keyboards via USB or Bluetooth - AUv3 with resizable interface and multichannel support (via In-App Purchase) REALTIME EXPORT - Export your project (WAV, M4A) - PRO: Export every individual track of your project (WAV) - PRO: Export individual files as ZIP - PRO: Export masterbus as M4A AVAILABLE RESOURCES - All devices: 16 takes and 16 groups - Standalone on iPhone: 6 tracks - Standalone on iPhone X and newer: 12 tracks - Standalone on iPad: 16 tracks - AUv3: 12 tracks Requires iPhone 8 or higher. Requires iPad 5th Gen or higher. HYPERTRON is free to use with unlimited playtime and the ability to record as many samples as you want. For more amazing features, go PRO and unlock the full potential of HYPERTRON across all devices with a one-time purchase inside the app.
Screenshots
Verdict
The clearest difference is rating: Hypertron at 4.4 against Scratch Disc's 3.3. Hypertron also leads on ratings volume (162 vs 16). Scratch Disc's advantage is review sentiment (68% vs 53%) and iOS requirement (7.1 vs 15.6). On price, 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
Both are free to download. Scratch Disc sells 1 one-off in-app purchase and Hypertron sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Hypertron holds the better App Store score, 4.4 against 3.3. That said, the two scores are not equally well evidenced: Hypertron has 162 ratings behind it against 16, so its average is the more settled of the two. Written reviews complicate that: 68% of Scratch Disc's written reviews are positive against 53% of Hypertron's, so the app with the better star average is not the one people write more warmly about.
Scratch Disc ships an update every 3 weeks, Hypertron monthly. The most recent releases landed on November 6, 2026 and November 13, 2026 respectively.
| Parameter | Scratch Disc | Hypertron |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (16 ratings) | 4.4 (162 ratings) — better |
| Positive reviews | 68.2% of reviews — better | 53.3% of reviews |
| Number of ratings | 16 | 162 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 7.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 37 MB | 94 MB |
| Age rating | 4+ | 4+ |
| Developer | Kristin Graffagnino | Hypertron Audio |
Customer experience
Scratch Disc
Hypertron
Bugs and requests
Scratch Disc
Not enough reviews yet to summarise bugs or requests.
Hypertron
Reported bugs
37 issues- App freezes frequently
- App crashes when saving or opening files
- AUV3 plugin not working in Logic Pro
- Complete crash out in AUM when running multiple instances
- Cannot open saved projects in AUM (instant crash)
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- App stops moving through parts and gets stuck
- App crashes weekly, no recovery possible
- Saved track won't load groups without restart
- App won't load additional groups
- Mic remains open and live after swiping closed
- Arpeggiator not working
- App freezes when trying to go deeper (sample editing, keys)
- Lost work due to app freezing
- App crashes on opening on iPad
- Pro IAPs missing in latest version
- Microphone doesn't record a sample or sample is scratchy/distorted
- Sample pads not activating sound (but sounds come in piano roll)
- Paid for Pro version but features not working
- Stuck with free version after paying for Pro
- iPad Air 2 not supported with a persistent message
- Feedback deleted when not favorable
- Pads are just slots, cannot trigger sound by tapping
- Note repeat and beat setting interaction not well thought out
- Pattern length decrease not reflected in numbers
- No live pattern insertion other than note repeat
- Cannot remove individual notes, only all notes
- No metronome found
- Resetting pattern resets everything and removes assigned sample
- No triplets or swing/shuffle mode
- Preview 'play' button for samples is too small
- Loading entire kits is time-consuming, samples must be loaded individually
- Synth engine unclear
- Sample swap not available in sample edit mode
- Start/end point adjustment not in real-time
- Step sequencer not functional in sample edit mode
- Effect parameters unclear
- Hardware support issues (AKAI MPD218 not working)
Requested features
15 requests- Add a close app button
- Improve color palette for better visibility
- Add undo button
- Provide more tutorial videos
- Implement last step function for polyrhythm
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- Add a randomizer feature
- Allow Playbeat to connect for sample import
- Add polyphonic playback
- Linear characteristic for knobs
- Light or dark mode option
- Time stretch feature in Pro version
- Import samples from Files app
- Share audio session with other apps
- Synth sample tweaking for effects
- Better tutorial for synth effects
In-app purchases
Scratch Disc
- Unlock Premium Features$3.99
Hypertron
- Bassdrums$0.99
- E-Piano$0.99
- Eight Zero Eight$2.99
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- LOFI$2.99
- English$2.99
- AUV3$2.99
- Ultimate Drums$4.99
- Old School$4.99
- PRO$4.99
- COMPLETE BUNDLE$9.99









