ReSlice vs Agonizer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReSlice
Easily slice audio samples into musical fragments that can be triggered by MIDI or touch. Create new loops with a polyrhythm arpeggiator and explore unique sonic textures through intelligent randomization. Import or record audio for instant manipulation.
- Automatic audio slicing
- MIDI and touch triggering
- Polyrythm arpeggiator
- Live recording and import
- Intelligent randomization
- Seven concurrent effects
- AUv3, Inter App Audio, Audiobus support
Read full descriptionHide full description
Audio Slice Machine Slice your audio samples with ReSlice and create flexible musical atoms which can be triggered by MIDI notes or the touch of your fingers. The polyrhythm Arpeggiator redefines the art of creating new loops from the extracted slices. Record live or import audio from clipboard or AudioShare to break it up into its rhythmic components. Apply the intelligent slice parameter and Arpeggio randomizer for instant creation of the unheard. “Always creative - always cutting edge. The team at VirSyn has a steady stream of cool apps that they release. They are always pushing iOS music creation possibilities to new and interesting territory! It's a really fun to be able to quickly slice up sound and shift the slices around like this. I love the randomization features as well. With the touch of the dice one can create really surprising and interesting sonic experiences. Jordan Rudess Wizdom Music/Dream Theater” Features: Audio Slicer • Automatic break up of sample/drum loop into up to 32 slices • Edit slice positions. • Edit level, pan, pitch and envelope for each slice • Play slices on screen or via MIDI • Three choke groups available to cut sample play • Import audio from clipboard or AudioShare • Record audio for instant slicing and reusing in realtime Effect section • Seven studio standard effects concurrently usable: • Oversampled distortion with four different algorithms for antialiased sound. • Lowpass / Highpass / Bandpass parametric equalizer • 8 pole analog Phaser • Flanger • Four line chorus • Stereo/Ping-Pong delay with glitch free delay time change. • Hi end reverberation unit. Four part Polyrhythm Arpeggiator • Uses programmable sequences with up to 32 steps. • Trigger slices using 4 arpeggio parts with different settings • Unique randomizer generates Arpeggios with 100% usability. • Factory arpeggios included, unlimited user arpeggios possible. Global • AUv3 AudioUnit • Inter App Audio • Audiobus 3 support with state saving. • Play slices live with the onscreen keyboard. • Can use CoreMIDI compatible MIDI Keyboard. • Audio recorder with share function. • Share user presets. • Support for virtual MIDI input connections. • Multichannel MIDI Learn for external MIDI controllers. • MIDI Tempo sync. Start/Stop Arpeggio. • Ableton Link compatible.
Agonizer
This app is a monophonic synthesizer focused on bass sounds, developed with a synth bass expert. It features dual wavetable oscillators, a mangle section, and built-in stereo effects. It supports MPE controllers and various audio/MIDI connectivity options for standalone or app-to-app use.
- Monophonic synth engine for bass
- Dual wavetable oscillators
- Built-in stereo effects
- MPE controller support
- Standalone and AUv3 operation
- 140+ factory presets
Read full descriptionHide full description
Agonizer is a monophonic synthesizer designed in collaboration with YouTuber and synth bass expert Jakob Haq of haQ attaQ Overview: * Monophonic Synth Engine with focus on Bass * Built-in stereo effects * 140+ fine tuned factory presets designed by Jakob Haq * Supports ROLI Seaboard and other MPE controllers out of the box * Standalone operation with support for USB audio interfaces, wired, network & bluetooth MIDI * Audio Unit v3 Extension * Inter App Audio support * Audiobus support * Ableton Link Synth Voice: * Dual Wavetable Oscillators with 40+ Wavetables, Morphing & X-Mod * Dedicated sub osc & noise source * Mangle Section with pre-filter Drive, Bitcrush, Lift and Push controls * VA Ladder filter * Wobulator (Highly tweak-able Sequenced LFO) * LFO with Key and BPM Sync * Variable Slope AD & ADSR Envelopes * Tube based master drive Effects: * 2x stereo effect units * Vintage Chorus * Digital Delay Presets: * Factory bank including 140+ presets designed by Jakob Haq * Preset Management with Templates & Categories * Shared User Presets between Standalone and AUv3 versions * Preset Export & Import Connectivity: * Standalone * AUv3 Instrument * Inter-App Audio Instrument * Audiobus Instrument Requirements: * iOS12+ * iPad Air 2 or newer
Screenshots
Verdict
The clearest difference is price: ReSlice at $7.99 against Agonizer's $19.99. ReSlice also leads on in-app purchases (none vs 3) and update cadence (every 5 weeks vs every 5 months). Agonizer's advantage is rating (4.8 vs 4.3) and ratings volume (203 vs 27). On review sentiment, ads, device support and iOS requirement 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
ReSlice costs $7.99 and Agonizer $19.99 up front. Agonizer sells 3 one-off in-app purchases. ReSlice asks for nothing beyond the download.
Agonizer holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Agonizer has 203 ratings behind it against 27, so its average is the more settled of the two. Written reviews point the same way: 72% of ReSlice's written reviews are positive against 78% of Agonizer's.
ReSlice ships an update every 5 weeks, Agonizer every 5 months. The most recent releases landed on October 19, 2026 and October 18, 2026 respectively.
| Parameter | ReSlice | Agonizer |
|---|---|---|
| Price | $7.99 — better | $19.99 |
| Rating | 4.3 (27 ratings) | 4.8 (203 ratings) — better |
| Positive reviews | 71.9% of reviews | 77.8% of reviews — better |
| Number of ratings | 27 | 203 — better |
| Update frequency | Every 5 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 362 MB |
| Age rating | 4+ | 4+ |
| Developer | Harry Gohs | Kai Aras |
Customer experience
ReSlice
Agonizer
User reviews
ReSlice
From 27 App Store ratingsWhat we love
- 💡 Powerful sampling and slicing capabilities
- 🎶 Great for rhythmic composition
- 🎛️ Versatile for beats, pads, and more
- 🎹 Arpeggiator adds creative options
- 🔌 AUv3 compatibility works well
Room to improve
- 🐛 Crashes frequently
- ❓ Lacks clear documentation/manual
- 🎛️ Clunky export process
- 🎛️ Inefficient slice detection for some
- 🤔 Not intuitive for some users
Agonizer
From 203 App Store ratingsWhat we love
- 🎵 Excellent sound quality and unique bass tones
- 🎨 Intuitive and well-designed user interface
- ⚙️ Powerful modulation and sound design capabilities
- 🎛️ Wobulator feature for creative bass manipulation
- 📦 Great presets included with the app
Room to improve
- 🐛 Keyboard legato/mono-synth behavior inconsistent
- 🐛 Frequent crashes in host applications (AUM, Cubasis, Audiobus)
- 🐛 No sound output in GarageBand and some AU hosts
- 🐛 App freezes on splash screen with iOS 18.3
- 🐛 UI responsiveness issues and knob lag
Bugs and requests
ReSlice
Reported bugs
13 issues- Crashes in AUM with Koala sending MIDI
- Crashes in GarageBand (Audio Unit extension closed)
- Text field and text are black when saving session recording
- BPM automatically assigned is wrong (-1 of actual BPM)
- Slice detection inefficient
Show 8 moreShow fewer
- No way to mute speaker during live recording (feedback loop)
- Audio Unit version doesn't allow importing sounds directly
- Bug when using as Audio Units in GarageBand (project won't open)
- Cannot delete last patch of cut samples (app closes)
- ReSlice not working properly in Audiobus
- Keyboard reacts slowly or not at all on iPhone 5
- Temperamental and crashing a lot on iPhone 6
- Cannot adjust tempo speed of arp when effects app is connected in AUM
Requested features
39 requests- Manual/documentation
- Save FX rack configuration
- Save general preset while in arp edit mode
- Overlay of filename for loaded sample
- Session recording cache location
Show 34 moreShow fewer
- Double-tap input for tempo control
- Export MIDI with audio and FXP
- Zoom in for accurate chops
- Mute speaker during live recording
- Dice/randomization for iPhone version
- Scrolling cursor when playing slices
- Time stretching per slice
- Filters per slice
- Saturation per slice
- Velocity support
- Integrate with Audio Layer
- Export track 1 with loop (own pattern)
- Sustain knob feature
- Global transpose of arpeggio via keyboard
- Latch keyboard notes
- Import/export via Files app
- Global slices options for note length
- Download files via Files
- Loopable slices
- More presets
- Solo option to select and transpose one slice
- Ability to export slices as audio/midi to AudioShare directly
- More control via MIDI (sustain of slice triggered by sustain of key press)
- Mute group possibility
- Support .REX2 format
- Add multiple samples on the same scale
- Fix Audiobus compatibility
- Add pinch zoom function for better slice control
- More control via MIDI
- Mute group possibility
- Support .REX2 format
- Add multiple samples on the same scale
- Fix Audiobus compatibility
- Add pinch zoom function for better slice control
Agonizer
Reported bugs
16 issues- Keyboard does not properly handle legato/mono-synth note priority
- Crashes in Audiobus, AUM, and Cubasis host applications
- No sound output when used as AUv3 plugin in hosts
- No sound in GarageBand integration
- App freezes on splash screen with iOS 18.3
Show 11 moreShow fewer
- Stuck notes and failed note triggering
- Scream button malfunction when switching presets
- Cutoff knob lag in AUv3 scenarios
- UI jitter and text cutoff on iPhone
- Favorite preset feature not working on iPhone
- Program change not working properly in hosts
- Always opens with init preset in host applications
- Modulation matrix sensitivity too high (2% movement = large range)
- Audio output peaks in red with no sound
- Permanent clipping/damaged audio output
- Misleading IAP pricing display (showing 'FREE' for paid content)
Requested features
10 requests- Polyphony mode or toggle between mono and poly
- Envelope drawing capability instead of preset selection
- Menu-based waveform selection instead of cycling
- Arpeggiator function
- Preset browser search and favorites filter
Show 5 moreShow fewer
- Extended automation control for all knobs
- Keytracking for filter
- Reverb effect
- Accelerometer/gyroscopic velocity sensitivity
- Customizable number of keyboard keys
In-app purchases
ReSlice
No in-app purchases
Agonizer
- Chrome Oasis Pack$3.99
- Circuit Bender Pack$3.99
- Neon Nightmare Pack$4.99









