DubFilter vs RRS EQP
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
RRS EQP
This audio plugin emulates a classic 1960s program equalizer, offering unique frequency shaping capabilities. It allows for simultaneous boosting and cutting of frequencies to create resonant shelves, faithfully modeling vintage hardware.
- Classic program equalizer emulation
- Unique resonant shelf creation
- Vintage hardware modeling
- Multiple frequency boost/attenuate points
- Analog saturation
- Undo/Redo functionality
- Scalable GUI
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The EQP-1A 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 EQP-1A AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQP-1A AUv3 plug-in comes as In-App Purchase. The EQP-1A based on Classic Program Equalizer from the '60s, original EQ is renowned for its unique ability to boost and cut the same frequencies simultaneously, thereby creating a resonant shelf, the EQP-1A faithfully models the overbuilt transformers and complex tube amplifiers of the original hardware. SPECIFICATIONS: • 20, 30, 60, 100 Hz shelf Boost; • 20, 30, 60, 100 Hz shelf Attenuate; • 3, 4, 5, 8, 10, 12, 16 kHz peak Boost; • 5, 10, 20 kHz shelf Attenuate; • On/Off Analog Saturation; • Undo/Redo; • A/B; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. Conceived and created for broadband equalization, the EQP-1A features 4 low boost/cut frequencies, 3 high-cut frequencies and 7 HF boost points, along with a bandwidth control for shaping the high boost curve. The broadband EQP-1A and the midrange MEQ-5 together comprise a full range vintage EQ chain. To use EQP-1A as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — EQP-1A will appear in the list of Audio Unit extensions for effect plug-ins in the host app.
Screenshots
Verdict
The clearest difference is rating: RRS EQP at 5.0 against DubFilter's 4.7. RRS EQP also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (10.0 vs 17.0). DubFilter's advantage is ratings volume (71 vs 6). On price, 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
Both are free to download. DubFilter sells 1 one-off in-app purchase and RRS EQP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
RRS EQP holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: DubFilter has 71 ratings behind it against 6, so its average is the more settled of the two.
DubFilter ships an update every 6 months, RRS EQP every 2 months. Both last shipped on October 24, 2026.
| Parameter | DubFilter | RRS EQP |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (71 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 73.3% of reviews | — |
| Number of ratings | 71 — better | 6 |
| Update frequency | Every 6 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Amazing Noises | RRS, OOO |
Customer experience
DubFilter
RRS EQP
In-app purchases
DubFilter
- Audio Unit Plugin Support$1.99
RRS EQP
- RRS EQP-1A Unlimited$4.99








