Comparison

PolyIvoks Filter vs Fair Limiter

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

Head to head
About

PolyIvoks Filter

This audio effect plugin emulates the sound of a legendary 1980s Soviet synthesizer filter. It offers stereo output and a range of modulation and envelope controls for creative sound shaping. A demo version is available with limited free play time.

Highlights
  • Standalone and AUv3 plugin
  • Modeled vintage filter
  • LFO and envelope modulation
  • Stereo output
  • Scalable GUI
  • Undo/Redo and A/B comparison
Read full description

PolyIvoks Filter 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 PolyIvoks Filter AUv3 plug-in as many times as you want, thereby you get the Demo period again and again.) Unlimited version of PolyIvoks Filter AUv3 plug-in comes as In-App Purchase PolyIvoks Filter developed on the basis of the filter of the legendary Soviet synthesizer from 1980s, and only now the legendary Soviet analog sound became available in stereo mode. Features: • Standalone and AUv3 plug-in; • Precise port of Rack Extensions plug-in; • Modeled vintage Filter; • Undo/Redo; • A/B comparison; • 2x/4x/8x Upsampling; • Macro controllers; • Built-in Gain Match; • Scalable GUI. MODULATOR house the LFO controls: MODE — which offers four waveforms, including Noise and a stepped function for Sample & Hold effects, well as SPEED control. FILTER: The four controls adjust CUTOFF, RESONANCE, LPF to BPF switch, MODULATION (LFO) level and ENVELOPE level (You can set positive or negative values). ENVELOPE: repeating ATTACK/DECAY envelope. MASTER: the rightmost unit has 3 regulators ENVELOPE level (You can set positive or negative values), VOLUME (output gain) and DIGITAL/ANALOG switch. To use PolyIvoks Filter as a plug-in, you need an AUv3-compatible host app like GarageBand, Auria, AUM, Cubasis and more — PolyIvoks Filter will appear in the list of Audio Unit extensions for effect plug-ins in the host app.

About

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.

Highlights
  • AUv3 plugin for DAWs
  • Fairchild 670 emulation
  • Sidechain filters and boost
  • Variable-Mu compression
  • Stereo or Mid/Side setup
  • 6386 tube simulation
Features
Read full description

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

PolyIvoks Filter4 screens
Fair Limiter4 screens

Verdict

The call

The clearest difference is review sentiment: PolyIvoks Filter at 86% against Fair Limiter's 50%. PolyIvoks Filter also leads on rating (4.7 vs 4.4) and iOS requirement (10.0 vs 14.0). On price, ratings volume, update cadence 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. PolyIvoks Filter 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.

ReceptionRating · Positive reviews · Number of ratings

PolyIvoks Filter holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 21 and 8 respectively. Written reviews point the same way: 86% of PolyIvoks Filter's written reviews are positive against 50% of Fair Limiter's.

UpkeepUpdate frequency

PolyIvoks Filter ships an update fortnightly, Fair Limiter monthly. The most recent releases landed on October 1, 2026 and September 27, 2026 respectively.

Scorecard3 real differences · 7 level
PolyIvoks Filter versus Fair Limiter: the parameters behind the verdict, then further details
ParameterPolyIvoks FilterFair Limiter
PriceFreeFree
Rating4.7 (21 ratings) — better4.4 (8 ratings)
Positive reviews85.7% of reviews — better50.0% of reviews
Number of ratings21 — better8
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS10.0 — better14.0
Further details — not scored
Size17 MB32 MB
Age rating4+4+
DeveloperRRS, OOOJan Maes

Customer experience

PolyIvoks Filter

All ratings21 ratings
Positive90.5%
Neutral0.0%
Negative9.5%
Written reviews7 reviews
Positive85.7%
Neutral0.0%
Negative14.3%

Fair Limiter

All ratings8 ratings
Positive75.0%
Neutral12.5%
Negative12.5%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

In-app purchases

1 purchases

PolyIvoks Filter

One-time1
  • RRS PolyIvoks Filter Unlimited$4.99
1 purchases

Fair Limiter

One-time1
  • Fair Limiter Activation$11.99

Questions

Is PolyIvoks Filter free?
PolyIvoks Filter is free to download, with in-app purchases available.
Is Fair Limiter free?
Fair Limiter is free to download, with in-app purchases available.
Which has better reviews, PolyIvoks Filter or Fair Limiter?
PolyIvoks Filter is rated higher. PolyIvoks Filter averages 4.7 out of 5 from 21 ratings, while Fair Limiter averages 4.4 from 8 ratings.
Do PolyIvoks Filter or Fair Limiter have ads?
Neither PolyIvoks Filter nor Fair Limiter shows ads.
Which is updated more often, PolyIvoks Filter or Fair Limiter?
PolyIvoks Filter ships an update fortnightly, and Fair Limiter monthly. Most recently, PolyIvoks Filter was updated on October 1, 2026 and Fair Limiter on September 27, 2026.

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