Comparison

6144 equalizer by DDMF vs Undulator

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

Head to head
About

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.

Highlights
  • Neve hardware EQ emulation
  • Higher harmonic generation
  • Five-band graphic equalizer
  • Gain without harshness
  • Audio Unit plugin
  • Inter App Audio compatible
Features
Read full description

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.

About

Undulator

This app offers a classic modulated tremolo effect inspired by a renowned hardware processor. It allows musicians to add rhythmic movement, ethereal feedback, and detuned echoes to various instruments and samples, creating evolving soundscapes and dynamic textures.

Highlights
  • Modulated tremolo effect
  • Ethereal feedback and detuned echoes
  • AM/FM modulation
  • Tempo sync
  • Real-time ribbon control
  • Multiple modulation waveforms
Read full description

Undulator is Eventide’s classic modulated tremolo effect from the iconic H3000 effects processor. This unique, rhythmic effect combines ethereal feedback and detuned echos, run through an AM / FM modulated tremolo. Whether used for manipulating samples or adding movement to strings, pads, guitars, and keys, Undulator is a muse for creative musicians. Add Undulator into your plug-ins collection for the most playable tremolo-style effect on your DAW or iOS device. Undulator excels at evolving pads, sync’d chops, and time-lapsing dreamy soundscapes. Combined with a multi-tap delay and powerful tremolo, Undulator’s controls give any sound sustain and shape. This is perfect for transforming ordinary synths, keys, guitars, and even vocals into evolving pads, tempo synced production elements, or ethereal and fluctuant delays. Simply put, Undulator can make shorter sounds into longer layered effects, and give sustaining sounds shape and rhythmic character. Use the Ribbon to morph tremolo patterns into vacillating and varying rhythmic territories. This can be effective for calling attention to synth pads and creating a state of flux or rarity which is otherwise arduous to achieve. - Turn up the MIX to increase the dry/effect ratio. - Utilize multiple modulation waveform shapes and sources to alter the rhythmic feel. - Subtly finesse detuning of delays by using SPREAD. - Add FEEDBACK to accentuate delays or create infinite loops. - The Secondary LFO determines how fast the depth and speed modulation “wiggle” their targets. - Lock the tremolo to tempo using SYNC. - RETRIG at the top of the waveform for a more predictable effect. - RIBBON lets you ‘play’ the effect in real-time and provides dynamic and fluid control to morph back and forth between the settings of your choice. - SLOW/FAST button toggles on a “Slow LFO” mode. Holding it down to “BRAKE” temporarily slows down the LFOs at a constant rate until released. - Update the tremolo speed in real time using the TAP button. - Available as an AUv3 plug-in and Standalone App.

Screenshots

6144 equalizer by DDMF2 screens
Undulator3 screens

Verdict

The call

6144 equalizer by DDMF and Undulator both sit at 4.3 stars, but that hides the real split: 86% of Undulator's written reviews are positive against 60% of 6144 equalizer by DDMF's. Undulator also leads on update cadence (every 2 months vs every 12 months) and price ($7.99 vs $9.99). 6144 equalizer by DDMF's advantage is ratings volume (34 vs 11) and iOS requirement (9.3 vs 11.0). On rating, 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

6144 equalizer by DDMF costs $9.99 and Undulator $7.99 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 — 4.3 for 6144 equalizer by DDMF against 4.3 for Undulator. Both are backed by a comparable volume of ratings — 34 and 11 respectively. Written reviews are what separate them: 60% of 6144 equalizer by DDMF's written reviews are positive against 86% of Undulator's.

UpkeepUpdate frequency

6144 equalizer by DDMF ships an update every 12 months, Undulator every 2 months. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

Scorecard5 real differences · 5 level
6144 equalizer by DDMF versus Undulator: the parameters behind the verdict, then further details
Parameter6144 equalizer by DDMFUndulator
Price$9.99$7.99 — better
Rating4.3 (34 ratings)4.3 (11 ratings)
Positive reviews60.0% of reviews85.7% of reviews — better
Number of ratings34 — better11
Update frequencyEvery 12 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.3 — better11.0
Further details — not scored
Size9 MB16 MB
Age rating4+4+
DeveloperChristian SiedschlagEventide

Customer experience

6144 equalizer by DDMF

All ratings34 ratings
Positive82.4%
Neutral5.9%
Negative11.8%
Written reviews20 reviews
Positive60.0%
Neutral5.0%
Negative35.0%

Undulator

All ratings11 ratings
Positive81.8%
Neutral0.0%
Negative18.2%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

In-app purchases

None

6144 equalizer by DDMF

No in-app purchases

None

Undulator

No in-app purchases

Questions

Is 6144 equalizer by DDMF free?
6144 equalizer by DDMF costs $9.99, with no in-app purchases.
Is Undulator free?
Undulator costs $7.99, with no in-app purchases.
Which has better reviews, 6144 equalizer by DDMF or Undulator?
6144 equalizer by DDMF and Undulator are both rated 4.3 out of 5 on the App Store, from 34 and 11 ratings respectively.
Do 6144 equalizer by DDMF or Undulator have ads?
Neither 6144 equalizer by DDMF nor Undulator shows ads.
Which is updated more often, 6144 equalizer by DDMF or Undulator?
6144 equalizer by DDMF ships an update every 12 months, and Undulator every 2 months. Most recently, 6144 equalizer by DDMF was updated on October 15, 2026 and Undulator on October 14, 2026.

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