RRS EQ3 vs Fair Limiter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RRS EQ3
This audio effect plugin offers vintage-inspired tonal adjustments with five broad, interacting bands. It emulates an '80s approach to frequency shaping, allowing for precise control over your mix's clarity and low-end response. A demo version is available for trial before unlocking the full unlimited experience.
- Standalone and AUv3 plugin
- Modeled vintage EQ
- Multiple fixed and boost-only bands
- Stereo, Mid, or Side EQ modes
- Undo/Redo and A/B comparison
- Scalable GUI
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EQ3 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 EQ3 AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of EQ3 AUv3 plug-in comes as In-App Purchase. In the '80s it was the first to use a different approach to tonal adjustments. In conventional analog equalizers, whether they are shelving, sweepable, graphic or parametric types, various sections of the audio spectra are boosted or attenuated by adding or subtracting bandpasses. In this case, frequency shaping is achieved by summing bandpasses. Our emulation of this method is quite similar to the original and improved with additional possibilities of digital technology. Now you can hear it for yourself. There are five broad, overlapping, interacting bands: 10 (Sub), 40, 160, 650 and 2.5 кHz, along with the «rock (airy) band» control, which is an HF boost-only control. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage EQ; • Boost only shelf at 2.5 kHz, 5 kHz, 10 kHz, 20 kHz and 40 kHz; • 2.5 kHz fixed boost and cut shelf; • 650 Hz fixed boost and cut bell; • 160 Hz fixed boost and cut bell; • 40 Hz fixed boost and cut bell; • SUB (10 Hz) fixed boost and cut bell; • Stereo (Mono), Mid or Side EQ modes; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. When using the EQ3, remember that the bands are broad, approximately 2 octaves. They overlap one another. For example: when boosting the 10 kHz «rock band» to a +6 position on the knob, to keep the response flat through in 2.5 kHz region you should rotate the 2.5 kHz coarse knob to about a -1 position. The amount you back off the 2.5 kHz control should, of course, be set by ear. Following this kind of procedure will accomplish a more airy sound, with much more clarity. You can accomplish the same thing for the low frequency response by applying the same principles. The EQ3 will reach further into your mix than you've ever heard before with minimal phase distortion. As a result, you may need to take a little time and «play around» with the controls on the EQ3 before you can make intuitive adjustments. To use EQ3 as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — EQ3 will appear in the list of Audio Unit extensions for effect plug-ins in the host app.
Fair Limiter
This audio unit plugin emulates the classic Fairchild 670 tube compressor and limiter, offering its renowned sonic character. It provides comprehensive controls, including sidechain filters and boost, for detailed audio shaping. A free version is available for testing, with a one-time purchase to remove limitations.
- AUv3 plugin for DAWs
- Fairchild 670 emulation
- Sidechain filters and boost
- Variable-Mu compression
- Stereo or Mid/Side setup
- 6386 tube simulation
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Fair Limiter is an AUv3 audio unit plugin that digitally replicates the Fairchild 670, a legendary and highly esteemed tube compressor/limiter renowned for its outstanding audio quality and unique sonic character. Features: - Use as an AUv3 plugin in GarageBand, Logic Pro, AUM, or other DAW - Digital emulation of the Fairchild 670 - Features all the controls of the legacy Fairchild 670 - Adds additional control with the sidechain filters and boost - Variable-Mu compression - Fast attack, slow release times - 6386 tube simulation - Stereo or Mid/Side setup - Linking of stereo controls and sidechain output The free version allows you to test Fair Limiter completely, but every minute the limiter will be silent for 3 seconds. To remove these limits there is a one time in-app purchase.
Screenshots
Verdict
The clearest difference is review sentiment: RRS EQ3 at 100% against Fair Limiter's 50%. RRS EQ3 also leads on rating (4.8 vs 4.4) and ratings volume (25 vs 8). On price, update cadence, ads and in-app purchases 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. RRS EQ3 sells 1 one-off in-app purchase and Fair Limiter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
RRS EQ3 holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 25 and 8 respectively. Written reviews point the same way: 100% of RRS EQ3's written reviews are positive against 50% of Fair Limiter's.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | RRS EQ3 | Fair Limiter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (25 ratings) — better | 4.4 (8 ratings) |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 25 — better | 8 |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 10.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 23 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | RRS, OOO | Jan Maes |
Customer experience
RRS EQ3
Fair Limiter
In-app purchases
RRS EQ3
- RRS EQ3 Unlimited$4.99
Fair Limiter
- Fair Limiter Activation$11.99









