Comparison

Discord4 vs RE

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

Head to head
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.

About

RE

This app is a versatile virtual tape machine offering authentic tape echo and chorus effects. It also functions as a sampler, looper, and overdubbing tool, allowing for creative audio manipulation and real-time performance.

Highlights
  • Virtual tape deck with 3 read heads
  • Authentic tape echo emulation
  • Tape loop mode with overdubbing
  • Sample/loop library
  • Real-time parameter visualization
  • Wow, Flutter, Color, Hiss & Saturation controls
Features
Read full description

RE-1 - Tape Echo RE-1 is a full featured virtual Tape Machine capable of delivering authentic tape based echo and chorus effects but it doesn't stop there. With it's interactive tape player, sample, loop and overdub features it's possible to use it like a virtual tape recorder, sample player, looper or simply as a master effect. Overview: - Virtual Tape deck including 3 individually controllable read heads, variable delay time and feedback - Interactive user interface and realtime visualisation of various parameters related to the tape simulation - Dedicated controls for Wow, Flutter, Color, Tape Hiss & saturation amount - Tape Loop mode with overdub, tape reverse and time-stretching - Sample/Loop library loads wave files onto the virtual tape loop - Transport and Tempo Sync - Stereo Spread & Stereo Panner - Input processing: Highpass filter - Output processing: 2 band eq Tape Echo: - Authentic tape echo emulation - Multi-tap delay with 3 individually controllable read heads - Color Control adjusts the echo's tone from dark to bright - Delay Time: 5ms - 1000ms (or 1/32th to 1/1) - Wow & Flutter - Tape Hiss and Saturation - Stereo spread - Stereo panner Looper / Sample Player: - Uses the tape like a traditional looper with unlimited overdubs - Configurable Loop length with 1 - 8 bars and tempo sync and tape reverse - Tape transport can be linked to the host's transport controls - Time stretching keeps loops in sync - Samples/loops can be loaded onto the tape directly - Samples can be created from the tape loop and stored in the sample library at any time - Factory content includes a variety of loops grouped by style - Samples/loops can be imported from and exported to other apps Connectivity: - Standalone - AUv3 - InterApp-Audio - Audiobus - Ableton Link - MIDI (Tempo, CC, Program Change) - Requirements: - iOS 11+

Screenshots

Discord42 screens
RE3 screens

Verdict

The call

The clearest difference is update cadence: RE at every 3 months against Discord4's every 14 months. RE also leads on ratings volume (132 vs 29) and iOS requirement (11.0 vs 16.0). Discord4's advantage is price ($8.99 vs $9.99). On rating, review sentiment, 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

CostPrice · In-app purchases · Ads · Monetization

Discord4 costs $8.99 and RE $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for Discord4 against 4.7 for RE. Both are backed by a comparable volume of ratings — 29 and 132 respectively. Written reviews are what separate them: 61% of Discord4's written reviews are positive against 66% of RE's.

UpkeepUpdate frequency

Discord4 ships an update every 14 months, RE every 3 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
Discord4 versus RE: the parameters behind the verdict, then further details
ParameterDiscord4RE
Price$8.99 — better$9.99
Rating4.7 (29 ratings) — better4.7 (132 ratings)
Positive reviews61.1% of reviews65.8% of reviews — better
Number of ratings29132 — better
Update frequencyEvery 14 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.011.0 — better
Further details — not scored
Size29 MB107 MB
Age rating4+4+
DeveloperAudio Damage, Inc.Kai Aras

Customer experience

Discord4

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

RE

All ratings132 ratings
Positive90.2%
Neutral4.5%
Negative5.3%
Written reviews38 reviews
Positive65.8%
Neutral15.8%
Negative18.4%

Bugs and requests

Discord4

Not enough reviews yet to summarise bugs or requests.

RE

Reported bugs

15 issues
  • Crackling noises when adjusting UI
  • UI not fitting screen on smaller devices (iPhone, iPod)
  • App crashes when loading samples
  • Controls not visible or usable on right side of app
  • Wave files not working in standalone app
Show 10 more
  • Cannot see entire screen on 13 pro max, cut off
  • Presets not saving/loading correctly, AU crashes
  • Feedback knob does nothing
  • Output and mix knobs control same thing
  • Save system/file export doesn't work
  • Cannot preview output file, location unknown
  • Tape speed not adjustable, loads at half speed
  • AUv3 sizing issues on iPad Pro
  • Presets load with audio only on one side
  • App crashes when loading presets

Requested features

7 requests
  • Ability to import or record own samples
  • Add glitch to beginning or end of loops
  • Make the app more lightweight (less CPU intensive)
  • Add dark mode option
  • Improve documentation
Show 2 more
  • Add IAA or AUv3 generator functionality
  • Consider other classic hardware emulations

In-app purchases

None

Discord4

No in-app purchases

None

RE

No in-app purchases

Questions

Is Discord4 free?
Discord4 costs $8.99, with no in-app purchases.
Is RE free?
RE costs $9.99, with no in-app purchases.
Which has better reviews, Discord4 or RE?
Discord4 is rated higher. Discord4 averages 4.7 out of 5 from 29 ratings, while RE averages 4.7 from 132 ratings.
Do Discord4 or RE have ads?
Neither Discord4 nor RE shows ads.
Which is updated more often, Discord4 or RE?
Discord4 ships an update every 14 months, and RE every 3 months. Most recently, Discord4 was updated on November 2, 2026 and RE on November 6, 2026.

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