DubFilter vs Zero Chorus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
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.
- Roland Dimension D style chorus
- Feedback control for flanging
- AUv3 audio unit extension
- Expanded touch controls
- Desktop quality algorithm
- Thickens guitar and synth parts
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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
Verdict
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
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.
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.
Both ship on a similar rhythm, roughly every 6 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.
| Parameter | DubFilter | Zero Chorus |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.7 (71 ratings) — better | 4.2 (22 ratings) |
| Positive reviews | 73.3% of reviews — better | 42.9% of reviews |
| Number of ratings | 71 — better | 22 |
| Update frequency | Every 6 months | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Amazing Noises | Blamsoft, Inc. |
Customer experience
DubFilter
Zero Chorus
In-app purchases
DubFilter
- Audio Unit Plugin Support$1.99
Zero Chorus
No in-app purchases









