Chorus D vs ERS_EchORek2
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chorus D
This audio unit effect emulates a classic chorus stomp-box with a unique, subtle sound. It offers a wider stereo image and thicker sound without the typical pitch-wavy artifacts. Its simplified interface provides a range of tasteful tones.
- Subtle stereo pitch-shifting
- Constant pitch-shift amounts
- Stereo image widening
- Sound thickening
- Six tasteful presets
- Unique sound profile
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Chorus D is an audio unit effect inspired by a well-loved classic chorus stomp-box. HOW IS IT DIFFERENT FROM OTHER CHORUS EFFECTS? It's more subtle. It has a stereo pair of pitch-shifters, one shifts up and the other down. Every few seconds, the two pitch shifters trade places: the high one goes low and the low one goes high. Unlike most other chorus effects, the pitch-shift amounts stay constant rather than oscillating up and down. For that reason, you don't hear the wavy pitch sound that other chorus effects make. At low settings, you can put it on a track to widen the stereo image or thicken up the sound and listeners may not be able to identify that they are hearing a chorus effect. WHY ONLY SIX BUTTONS? The original hardware that inspired this design had only four buttons and four presets, one for each button.* The simplicity of the controls is one of the reasons the effect was so well-liked: all four presets sounded great. With six buttons you get tones ranging from very subtle to clearly audible, and all of them are tasteful and useful. This effect makes only one type of sound but it's a unique sound that you don't get from other chorus effects. IS THIS AN EXACT CIRCUIT MODEL OF THE ORIGINAL HARDWARE EFFECT? No. We listened to the original and studied its design but then we built an effect to please our own ears. It sounds similar to the original but the design is unique. ************************************ Note: this is an audio unit plugin. It does not process audio as a standalone app. *Later on customers figured out that they could get some other settings by pressing two buttons simultaneously or forcing all the buttons off. We are using six buttons to get wider variety of sounds rather than expecting customers to discover those secret features of the original hardware.
ERS_EchORek2
This audio plugin emulates the iconic Binson Echorec2 analog delay, offering a unique, dreamlike, and psychedelic sound. Developed with careful study of original schematics, it provides enhanced controls for musicians seeking a distinctive vintage delay effect.
- Authentic 70's analog delay emulation
- Binson Echorec2 sound
- Enhanced controls
- Psychedelic sound quality
- Vintage delay effect
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The ERS EchORek2 analog delay plugin was originally designed and sold by Harrie Munnik and his Dutch company EmptyRoomSystems. DDMF is proud to carry on the legacy by distributing and further developing the set of ERS plugins. The “ERS EchORek2” plug-in has been developed to sound like the Binson Echorec2 delay with enhanced controls. This delay has been used on thousands of recordings worldwide. Starting from the early Pink Floyd albums, its unique sound and benign unpredictability have made it the weapon of choice of musicians who wanted to add a dreamlike, psychedelic quality to their sound. As all ERS plugins, careful study of the original schematics have led to a plugin version that leaves nothing to be desired...
Screenshots
Verdict
The clearest difference is rating: Chorus D at 5.0 against ERS_EchORek2's 4.1. Chorus D also leads on update cadence (every 7 months vs every 26 months) and price ($5.99 vs $9.99). ERS_EchORek2's advantage is iOS requirement (9.3 vs 12.0). 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
Chorus D costs $5.99 and ERS_EchORek2 $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Chorus D holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 6 and 7 respectively.
Chorus D ships an update every 7 months, ERS_EchORek2 every 26 months. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.
| Parameter | Chorus D | ERS_EchORek2 |
|---|---|---|
| Price | $5.99 — better | $9.99 |
| Rating | 5.0 (6 ratings) — better | 4.1 (7 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 6 | 7 — better |
| Update frequency | Every 7 months — better | Every 26 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 9.3 — better |
| Further details — not scored | ||
| Size | 11 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Blue Mangoo Consulting Company Limited | Christian Siedschlag |
Customer experience
Chorus D
ERS_EchORek2
In-app purchases
Chorus D
No in-app purchases
ERS_EchORek2
No in-app purchases









