Comparison

ReSlice vs Discord4

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

Head to head
About

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.

Highlights
  • Automatic audio slicing
  • MIDI and touch triggering
  • Polyrythm arpeggiator
  • Live recording and import
  • Intelligent randomization
  • Seven concurrent effects
  • AUv3, Inter App Audio, Audiobus support
Features
Read 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.

About

Discord4

This stereo pitch-shifting delay app offers three distinct algorithms for vintage, clean, or experimental granular effects. It features tempo-synced delays, a reverb in the feedback loop, and flexible LFO modulation for extensive sound design. Control pitch shifts with MIDI and fine-tune effects with buffer size adjustments.

Highlights
  • Three pitch-shifting algorithms (Vintage, Clean, Granular)
  • Tempo-synced and free-running delays
  • Reverb in feedback loop for shimmer effects
  • Flexible LFO modulation
  • MIDI note control for pitch shifting
  • True stereo operation with panorama controls
  • Resizable vector-based GUI
Features
Read full description

Discord4 is the Audio Damage stereo pitch shifter, in its fourth generation. Each channel has its own pitch shifter, delay, bandpass filter, and feedback, and every repeat runs back through the shifter, so the same effect can double a vocal, stack fifths into an arpeggio, or send echoes spiraling up or down. Three engines set the character. Vintage is modeled on the H910 and H949 and has their grainy, glitchy character. Modern is cleaner and more transparent. Both have a buffer control from 32 to 2048 samples that changes the character of the shift. Granular cuts the signal into grains from 15 to 100 ms long, with an interval control and a Chaos knob that scrambles them, for anything from soft clouds to complete destruction. Detune the two sides a few cents in opposite directions over a short delay for a wide doubler. Set one side a fifth up, sync the delays, and raise the feedback so each repeat climbs another step. Keep the reverb in the loop for shimmer, then hit Freeze to hold a pad under the part. Turn on MIDI Shift to play harmonies from a keyboard, or ride the pitch wheel for bends. • Three pitch-shift engines: Vintage, Modern, and Granular • True stereo: each side has its own shifter, delay, filter, feedback, and pan, or link them so the right follows the left • Up to three octaves up or down, set by the cent or locked to semitones • Delays up to two seconds per side, free-running or tempo-synced, with feedback and cross-feedback • A bandpass filter in each feedback path, set from an XY pad • A stereo reverb inside the loop, with Freeze to hold the tail indefinitely • Saturation in the loop to keep runaway feedback in check • Two flexible LFOs for pitch, delay time, and filter frequency, shaped by Wave, Skew, and Warp, free from 0.01 to 14 Hz or synced to tempo • MIDI Shift: play the shift amount from a keyboard, with pitch bend, in hosts that send MIDI to effects • A preset browser with folders and favorites, and 50 factory presets from everyday doubling to the thoroughly strange Discord4 runs as an AUv3 plugin inside any compatible iOS host, including AUM, Cubasis, Drambo, and apeMatrix, and as a standalone app with background audio for live input. It is also available for macOS, Windows, and Linux as a desktop plugin. Requires iOS 16 or later. An AUv3 host app is recommended. No subscriptions. No accounts. No nonsense. Buy it once, own it forever.

Screenshots

ReSlice4 screens
Discord42 screens

Verdict

The call

The clearest difference is rating: Discord4 at 4.7 against ReSlice's 4.3. ReSlice's advantage is update cadence (every 5 weeks vs every 14 months) and review sentiment (72% vs 61%). On ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

ReSlice costs $7.99 and Discord4 $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Discord4 holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 27 and 29 respectively. Written reviews complicate that: 72% of ReSlice's written reviews are positive against 61% of Discord4's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ReSlice ships an update every 5 weeks, Discord4 every 14 months. Both last shipped on November 2, 2026.

Scorecard5 real differences · 5 level
ReSlice versus Discord4: the parameters behind the verdict, then further details
ParameterReSliceDiscord4
Price$7.99 — better$8.99
Rating4.3 (27 ratings)4.7 (29 ratings) — better
Positive reviews71.9% of reviews — better61.1% of reviews
Number of ratings2729 — better
Update frequencyEvery 5 weeks — betterEvery 14 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size45 MB29 MB
Age rating4+4+
DeveloperHarry GohsAudio Damage, Inc.

Customer experience

ReSlice

All ratings27 ratings
Positive74.1%
Neutral14.8%
Negative11.1%
Written reviews64 reviews
Positive71.9%
Neutral14.1%
Negative14.1%

Discord4

All ratings29 ratings
Positive93.1%
Neutral0.0%
Negative6.9%
Written reviews18 reviews
Positive61.1%
Neutral11.1%
Negative27.8%

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 more
  • 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 more
  • 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

Discord4

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ReSlice

No in-app purchases

None

Discord4

No in-app purchases

Questions

Is ReSlice free?
ReSlice costs $7.99, with no in-app purchases.
Is Discord4 free?
Discord4 costs $8.99, with no in-app purchases.
Which has better reviews, ReSlice or Discord4?
Discord4 is rated higher. ReSlice averages 4.3 out of 5 from 27 ratings, while Discord4 averages 4.7 from 29 ratings.
Do ReSlice or Discord4 have ads?
Neither ReSlice nor Discord4 shows ads.
Which is updated more often, ReSlice or Discord4?
ReSlice ships an update every 5 weeks, and Discord4 every 14 months. Most recently, ReSlice was updated on November 2, 2026 and Discord4 on November 2, 2026.

Other comparisons