Comparison

DubFilter vs RRS CL1

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

RRS CL1

This audio effect plugin offers dynamic range compression with unique sonic coloration through saturation and dithering. It includes a limiter, equalizer, and advanced features like parallel compression and M/S mode for detailed audio manipulation.

Highlights
  • Dynamic range compression
  • Saturation with even harmonics
  • Dithering for 'air' effect
  • Limiting module for peak control
  • Mid-range equalizer
  • Parallel compression
  • M/S operational mode
Read full description

RRS CL1 AUv3 plug-in — comes as time-limited Demo-version for you to try. It gives you 5 minutes of Free play time. (You can reload the CL1 AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of CL1 AUv3 plug-in comes as In-App Purchase. CL1 is stereo and mono audio signal dynamic range compressor. CL1 compressor has distinctive sound allowing its usage not only for technical purpose of dynamic range compression but also for artistic sound coloration, which happens due to usage of saturation with even harmonics, dithering that gives effect of «air» and oversampling with non-linear phase response that gives effect of «depth». CL1 compressor besides main dynamic range compression module also contains limiting module («limiter»), which allows controlling peaks passing through the compressor, mid-range equalizer module doing ISO-226 curves equalization and input signal or gain reduction VU-meter with lamp indicator for limiter operation control. CL1 compressor has adjustable high-pass filter for side-chain signal, also supports «parallel» compression and M/S operational mode. FEATURES: • Two different attack modes: «fast» and «slow»; • Softness of compressor characteristics control; • 6 operation modes: double mono, mono with external side-chain signal, mid channel, side channel, M/S, linked stereo; • Mid-range equalizer and Side-chain signal high-pass filter; • Pre- or Post-Limiter; • Attack and Release times multiplier; • Internal Dithering; • Parallel compression; • 8x oversampling and 64-bit floating point processing; • External Side-chain. • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. ATTACK MODE: • In «Fast» mode when control signal reaches Threshold the compressor immediately and very fast starts to lower the signal level slowing down by exponential law; • In «Slow» mode the compressor in the same situation starts gain reduction very slowly thus most attack of the signal passes through. MID SCOOP: • The built-in mid-frequencies equalizer is based on mid-frequency range equal loudness curves design and can be used as another tool to position instruments, with ability to highlight backside elements or to add a bit density to frontal elements and move them back at the same time. CL1 developed on the basis of «МОЛОТ» compressor by Vladislav Goncharov. To use CL1 as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — CL1 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

Screenshots

DubFilter4 screens
RRS CL14 screens

Verdict

The call

The clearest difference is update cadence: RRS CL1 at every 2 months against DubFilter's every 6 months. RRS CL1 also leads on iOS requirement (10.0 vs 17.0). DubFilter's advantage is rating (4.7 vs 4.5). On price, review sentiment, ratings volume and ads 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

Both are free to download. DubFilter sells 1 one-off in-app purchase and RRS CL1 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

DubFilter holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 71 and 28 respectively. Written reviews complicate that: 73% of DubFilter's written reviews are positive against 77% of RRS CL1's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

DubFilter ships an update every 6 months, RRS CL1 every 2 months. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

Scorecard3 real differences · 7 level
DubFilter versus RRS CL1: the parameters behind the verdict, then further details
ParameterDubFilterRRS CL1
PriceFreeFree
Rating4.7 (71 ratings) — better4.5 (28 ratings)
Positive reviews73.3% of reviews76.9% of reviews — better
Number of ratings71 — better28
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.010.0 — better
Further details — not scored
Size12 MB19 MB
Age rating4+4+
DeveloperAmazing NoisesRRS, OOO

Customer experience

DubFilter

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

RRS CL1

All ratings28 ratings
Positive85.7%
Neutral7.1%
Negative7.1%
Written reviews13 reviews
Positive76.9%
Neutral15.4%
Negative7.7%

In-app purchases

1 purchases

DubFilter

One-time1
  • Audio Unit Plugin Support$1.99
1 purchases

RRS CL1

One-time1
  • RRS CL1 Unlimited$4.99

Questions

Is DubFilter free?
DubFilter is free to download, with in-app purchases available.
Is RRS CL1 free?
RRS CL1 is free to download, with in-app purchases available.
Which has better reviews, DubFilter or RRS CL1?
DubFilter is rated higher. DubFilter averages 4.7 out of 5 from 71 ratings, while RRS CL1 averages 4.5 from 28 ratings.
Do DubFilter or RRS CL1 have ads?
Neither DubFilter nor RRS CL1 shows ads.
Which is updated more often, DubFilter or RRS CL1?
DubFilter ships an update every 6 months, and RRS CL1 every 2 months. Most recently, DubFilter was updated on October 7, 2026 and RRS CL1 on October 1, 2026.

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