6144 equalizer by DDMF vs Stereo Delay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
6144 equalizer by DDMF
This audio plugin emulates the sound of classic hardware equalizers, adding shimmer and gain without harshness. It's designed for use in compatible iOS music production apps.
- Neve hardware EQ emulation
- Higher harmonic generation
- Five-band graphic equalizer
- Gain without harshness
- Audio Unit plugin
- Inter App Audio compatible
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The 6144 is an Audio Unit and Inter App Audio equalizer which aims to recreate the legendary sound of the Neve hardware EQs. It will add that extra shimmer to your sound already when being added to a track flat, without turning any knobs, due to its carefully designed higher harmonic generation algorithm. Now start turning the knobs on any of the five bands and you'll be amazed: it's really possible to add copious amounts of gain without ever sounding harsh, at all. The 6144 has been a not-so-secret weapon for audio engineers in the desktop realm for some years already, and is now finally available as an iOS plugin for use in an Audio Unit or Inter App Audio compatible host.
Stereo Delay
This audio unit plugin creates natural-sounding stereo delays with unique panning that expands stereo width without sounding repetitive. It features filters and a mixing matrix for dynamic echo placement, ideal for adding depth to music.
- Unique stereo panning matrix
- Natural, moving stereo echo
- Low-cut and hi-cut filters
- Feedback control
- LFO controlled pan
- Requires host app
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Blue Mangoo Stereo Delay is designed to be the go-to app a for simple, musically tasteful delay effect. The most unique feature is the way it handles panning of delayed echoes in the stereo field. Most stereo delays set different delay times for the left and right channels, resulting in the famous ping-pong effect. The problem with the ping-pong stereo delay sound is that it's too extreme, and our ears quickly tire of hearing the same pattern of left-then-right delay repeated hundreds of times. This plugin does it differently. Instead of setting delay taps at different times panned hard left or right, it always keeps the same delay time setting for both the left and right channels, but it has a unique mixing matrix controlling the feedback between the left and right channels so that each time the echo repeats, it appears in a new place in the stereo field. This is different from a simple panning delay, because older echoes and newer ones can simultaneously appear at different positions in the stereo field. The result is a very natural stereo echo that expands the stereo width of the sound but doesn't sound repetitive or electronic. It's constantly moving and changing. The wet signal output has low-cut and hi-cut filters. The hi-cut filter tones down the harshness of the delay and makes it sound like natural echoes. The low-cut is especially useful for applying delay without making things sound muddy. At extreme settings the low cut can achieve a lo-fi telephone like delay sound. The signal flow diagram is as follows: Filters => LFO controlled pan => Stereo Delay Lines => Mixing matrix => Feedback to Delay Lines The dry signal (not shown above) bypasses the entire effect. The key difference between this and other delays is the mixing matrix, which is similar to the ones used in feedback delay network reverb effects to mix between multi-channel delays without changing the volume of the sound. It is the matrix (not the LFO) that creates the illusion that the signal has moved to a different location in the stereo field each time it repeats through the delays. *** THIS IS AN AUDIO UNIT ONLY EFFECT. IT REQUIRES A HOST APP SUCH AS AUM, Audiobus, GarageBand, OR Cubasis. IT DOES NOT RUN AS A STANDALONE APP. ***
Screenshots
Verdict
The clearest difference is rating: Stereo Delay at 4.8 against 6144 equalizer by DDMF's 4.3. Stereo Delay also leads on price ($2.99 vs $9.99) and review sentiment (75% vs 60%). 6144 equalizer by DDMF's advantage is ratings volume (34 vs 5). On ads, in-app purchases, monetization model and device support 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
6144 equalizer by DDMF costs $9.99 and Stereo Delay $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Stereo Delay holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: 6144 equalizer by DDMF has 34 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 60% of 6144 equalizer by DDMF's written reviews are positive against 75% of Stereo Delay's.
6144 equalizer by DDMF ships an update every 12 months, Stereo Delay every 6 months. The most recent releases landed on September 21, 2026 and September 11, 2026 respectively.
| Parameter | 6144 equalizer by DDMF | Stereo Delay |
|---|---|---|
| Price | $9.99 | $2.99 — better |
| Rating | 4.3 (34 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 60.0% of reviews | 75.0% of reviews — better |
| Number of ratings | 34 — better | 5 |
| Update frequency | Every 12 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | — | #195 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 10.3 |
| Further details — not scored | ||
| Size | 9 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Christian Siedschlag | Blue Mangoo Consulting Company Limited |
Customer experience
6144 equalizer by DDMF
Stereo Delay
In-app purchases
6144 equalizer by DDMF
No in-app purchases
Stereo Delay
No in-app purchases
Questions
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Is Stereo Delay free?
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