frekvens vs RE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
frekvens
This app offers a unique frequency shifter and stereo delay effect. It utilizes single sideband modulation and an infinite impulse response filter for advanced audio manipulation. Additional features include high/low pass filters and an LFO for delay modulation.
- Frequency shifter
- Stereo delay
- High and low pass filter
- LFO for delay modulation
- Core MIDI CC input
- Audiobus and Inter-App Audio support
- Audio Unit extension
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Frekvens is a frequency shifter and delay effect. Unlike a pitch shifter all frequencies are shifted linearly and then fed back into itself using the stereo delay unit. The frequency shifting is achieved with single sideband modulation using a hilbert transform and an infinite impulse response filter for fast computations. Frekvens also comes with a high and low pass filter and a lfo for modulating the delay play head. - frequency shifter - high, low pass filter - stereo delay - core midi cc input - audiobus - inter app audio - audio unit extension - save, load
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.
- 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
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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
Verdict
frekvens and RE both sit at 4.8 stars, but that hides the real split: 83% of frekvens's written reviews are positive against 66% of RE's. frekvens also leads on price ($2.99 vs $4.99). RE's advantage is ratings volume (132 vs 21). On rating, 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
frekvens costs $2.99 and RE $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.8 for frekvens against 4.7 for RE. That said, the two scores are not equally well evidenced: RE has 132 ratings behind it against 21, so its average is the more settled of the two. Written reviews are what separate them: 83% of frekvens's written reviews are positive against 66% of RE's.
frekvens ships an update every 2 months, RE every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | frekvens | RE |
|---|---|---|
| Price | $2.99 — better | $4.99 |
| Rating | 4.8 (21 ratings) — better | 4.7 (132 ratings) |
| Positive reviews | 83.3% of reviews — better | 65.8% of reviews |
| Number of ratings | 21 | 132 — better |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 3 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | Erik Sigth | Kai Aras |
Customer experience
frekvens
RE
Bugs and requests
frekvens
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
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- 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
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- Add IAA or AUv3 generator functionality
- Consider other classic hardware emulations
In-app purchases
frekvens
No in-app purchases
RE
No in-app purchases









