Comparison

DubFilter vs Zero Chorus

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

Head to head
About

DubFilter

This app provides a powerful dual filter with resonance and an exclusive overlap parameter. It also features a redesigned stereo sample player with LFO and scrubbing, along with extensive MIDI and file management capabilities.

Highlights
  • Dual low-pass/high-pass filter
  • Resonance and Overlap parameter
  • Stereo sample player with LFO
  • Scrubbing capabilities
  • Audiobus and Inter-App Audio support
  • MIDI control and file management
  • Preset morphing pad
Features
Read full description

The Dub Filter is a dual low-pass/high-pass 24/48 dB filter, with resonance and the exclusive Overlap parameter! It contains a completely redesigned stereo sample player with LFO and scrubbing capabilities. Main Features: - Audiobus and Inter-App Audio support (sender and FX) - State Variable Filter (Low-Pass and High-Pass) with resonance and overlap - Built In Stereo Sampler with varispeed and scrubbing - Control Manager LFO for all the Parameters - Midibus, Virtual Midi and Network: 14 bit NRPN controllers - File Manager, sharing common audio files via iTunes, Dropbox and AudioCopy - Snapshots Presets Morphing Pad - Post Fx Chain: Low-shelf Filter, High-shelf and Compressor

About

Zero Chorus

This audio effect plugin provides a high-quality chorus inspired by the Roland Dimension D, offering a versatile sound without muddy low end. It integrates seamlessly with iOS DAWs and supports expanded controls for easy tweaking.

Highlights
  • Roland Dimension D style chorus
  • Feedback control for flanging
  • AUv3 audio unit extension
  • Expanded touch controls
  • Desktop quality algorithm
  • Thickens guitar and synth parts
Read full description

Looking for a rich chorus effect without a muddy low end? Zero Chorus is a high quality Roland Dimension D style chorus plug-in. The addition of a feedback control improves versatility by enabling flanging effects. Zero Chorus is an Audio Unit Extension (AUv3) that works inside host apps. Just open up your favorite host that supports Audio Units and add it as an effect. The controls expand when touched so they can be easily seen while tweaking. Zero Chorus brings a superb chorus algorithm to your favorite iOS DAW. Compatible with GarageBand, Cubasis, Auria, BeatMaker, AudioBus, AUM, Modstep, and more. Blamsoft brings their experience creating top notch plug-ins for the desktop to iOS. The same algorithm is found in the popular Zero Hybrid Synthesizer Rack Extension for Propellerhead Reason. The available parameters allow you to dial in a wide variety of chorus effects, from transparent to heavy. It's great for thickening electric guitar or synth parts. You get a desktop quality algorithm at an iOS friendly price. Tap Developer Website for sound examples. Note: Second screenshot shows the effect of touching a control.

Screenshots

DubFilter4 screens
Zero Chorus2 screens

Verdict

The call

The clearest difference is price: DubFilter at Free against Zero Chorus's $2.99. DubFilter also leads on rating (4.7 vs 4.2) and review sentiment (73% vs 43%). Zero Chorus's advantage is in-app purchases (none vs 1) and iOS requirement (12.0 vs 17.0). On update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

DubFilter is free to download; Zero Chorus costs $2.99 up front. DubFilter sells 1 one-off in-app purchase. Zero Chorus asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

DubFilter holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 71 and 22 respectively. Written reviews point the same way: 73% of DubFilter's written reviews are positive against 43% of Zero Chorus's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

Scorecard7 real differences · 3 level
DubFilter versus Zero Chorus: the parameters behind the verdict, then further details
ParameterDubFilterZero Chorus
PriceFree — better$2.99
Rating4.7 (71 ratings) — better4.2 (22 ratings)
Positive reviews73.3% of reviews — better42.9% of reviews
Number of ratings71 — better22
Update frequencyEvery 6 monthsEvery 6 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.0 — better
Further details — not scored
Size12 MB15 MB
Age rating4+4+
DeveloperAmazing NoisesBlamsoft, Inc.

Customer experience

DubFilter

All ratings71 ratings
Positive91.5%
Neutral2.8%
Negative5.6%
Written reviews30 reviews
Positive73.3%
Neutral6.7%
Negative20.0%

Zero Chorus

All ratings22 ratings
Positive77.3%
Neutral4.5%
Negative18.2%
Written reviews21 reviews
Positive42.9%
Neutral4.8%
Negative52.4%

In-app purchases

1 purchases

DubFilter

One-time1
  • Audio Unit Plugin Support$1.99
None

Zero Chorus

No in-app purchases

Questions

Is DubFilter free?
DubFilter is free to download, with in-app purchases available.
Is Zero Chorus free?
Zero Chorus costs $2.99, with no in-app purchases.
Which has better reviews, DubFilter or Zero Chorus?
DubFilter is rated higher. DubFilter averages 4.7 out of 5 from 71 ratings, while Zero Chorus averages 4.2 from 22 ratings.
Do DubFilter or Zero Chorus have ads?
Neither DubFilter nor Zero Chorus shows ads.
Which is updated more often, DubFilter or Zero Chorus?
DubFilter ships an update every 6 months, and Zero Chorus every 6 months. Most recently, DubFilter was updated on October 7, 2026 and Zero Chorus on October 9, 2026.

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