Comparison

Zero Chorus vs dspMixFx UR

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

Head to head
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.

About

dspMixFx UR

This application provides control over DSP features and built-in effects for compatible audio interfaces on iOS devices. It allows for latency-free monitoring and streaming mixes for music applications, utilizing effects like reverb and channel strips.

Highlights
  • Control DSP features on URX-C/UR-C series
  • DSP mixer control
  • Built-in DSP effects control
  • Latency-free monitoring
  • Streaming mix creation
  • Compatible with specific Yamaha audio interfaces
Read full description

Together with the URX22C, URX44C, UR22C, UR24C, UR44C, and UR816C audio interfaces, the dspMixFx UR-C app allows you to utilize the benefits of Yamaha’s custom-designed SSP3 DSP chip directly on your iPad and iPhone. The app enables control of all DSP features—including the DSP mixer and built-in DSP effects—on compatible URX-C and UR-C series interfaces. You can create latency-free monitor mixes and streaming mixes for a wide variety of iOS / iPadOS music applications, using acclaimed DSP effects such as REV-X reverb, Sweet Spot Morphing Channel Strip, and Guitar Amp Classics. Please note that this app is only a control application for USB audio interfaces URX22C, URX44C, UR22C, UR24C, UR44C, and UR816C. Without a UR interface it can be used in demo mode only. Find more information about the URX-C series and the UR-C series audio interfaces here: URX-C: https://www.yamaha.com/2/urx-c/ UR-C: https://new.steinberg.net/en/audio-interfaces/ur-c-series/ Key features • Control of all DSP features including DSP mixer and DSP effects on URX-C and UR-C series • Latency-free DSP-powered monitoring when connected to iPad or iPhone • Works with URX22C, URX44C, UR22C, UR24C, UR44C, and UR816C * Depending on the iPad or iPhone model for using the UR-C interfaces with iPad or iPhone the Lightning to USB Camera Adapter or the Lightning to USB 3 Camera Adapter is required.

Screenshots

Zero Chorus2 screens
dspMixFx UR4 screens

Verdict

The call

The clearest difference is price: dspMixFx UR at Free against Zero Chorus's $2.99. Zero Chorus's advantage is rating (4.2 vs 3.7) and update cadence (every 6 months vs every 13 months). 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

CostPrice · In-app purchases · Ads · Monetization

dspMixFx UR is free to download; Zero Chorus costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Zero Chorus holds the better App Store score, 4.2 against 3.7. Both are backed by a comparable volume of ratings — 22 and 10 respectively. Written reviews point the same way: 43% of Zero Chorus's written reviews are positive against 32% of dspMixFx UR's.

UpkeepUpdate frequency

Zero Chorus ships an update every 6 months, dspMixFx UR every 13 months. The most recent releases landed on September 26, 2026 and August 13, 2026 respectively.

Scorecard4 real differences · 6 level
Zero Chorus versus dspMixFx UR: the parameters behind the verdict, then further details
ParameterZero ChorusdspMixFx UR
Price$2.99Free — better
Rating4.2 (22 ratings) — better3.7 (10 ratings)
Positive reviews42.9% of reviews — better32.1% of reviews
Number of ratings22 — better10
Update frequencyEvery 6 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size15 MB57 MB
Age rating4+4+
DeveloperBlamsoft, Inc.Yamaha Corporation

Customer experience

Zero Chorus

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

dspMixFx UR

All ratings10 ratings
Positive70.0%
Neutral0.0%
Negative30.0%
Written reviews28 reviews
Positive32.1%
Neutral17.9%
Negative50.0%

In-app purchases

None

Zero Chorus

No in-app purchases

None

dspMixFx UR

No in-app purchases

Questions

Is Zero Chorus free?
Zero Chorus costs $2.99, with no in-app purchases.
Is dspMixFx UR free?
dspMixFx UR is free to download, with no in-app purchases.
Which has better reviews, Zero Chorus or dspMixFx UR?
Zero Chorus is rated higher. Zero Chorus averages 4.2 out of 5 from 22 ratings, while dspMixFx UR averages 3.7 from 10 ratings.
Do Zero Chorus or dspMixFx UR have ads?
Neither Zero Chorus nor dspMixFx UR shows ads.
Which is updated more often, Zero Chorus or dspMixFx UR?
Zero Chorus ships an update every 6 months, and dspMixFx UR every 13 months. Most recently, Zero Chorus was updated on September 26, 2026 and dspMixFx UR on August 13, 2026.

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