Comparison

GliderVerb vs PolyIvoks Filter

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

Head to head
About

GliderVerb

This app offers a unique reverberation effect that simulates a room changing shape, creating evolving soundscapes. It provides a wide range of sonic possibilities, from smooth resonances to granular disintegration, with extensive control over its parameters.

Highlights
  • Continually modulated reverb algorithm
  • Pitch resonator
  • Ribbon resonance player
  • Built-in stereo sampler
  • Control manager LFO
  • Audiobus and Inter-App Audio support
  • Preset morphing pad
Features
Read full description

GliderVerb is a “Reverberator with Glissandos” simulating a room gradually changing its shape. It is an expanded version of an algorithm created by James McCartney for his Supercollider 2 programming language. The original algorithm had no user-variable parameters: this device adds a series of parameters to create a wide palette of effects; from evolving reverberations to granular disintegration to smooth resonances. Main Features: - Audiobus and Inter-App Audio support (sender and FX) - Continually Modulated Reverb Algorithm - Pitch Resonator - Ribbon Resonance Player - Pad impulse generator - Built In Stereo Sampler with varispeed - Control Manager LFO for 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 New Version! We removed the "annoying voice" and now you can use all the Gliderverb features, even the Pad and the Ribbon. The only limitation is you can't save new presets; but you still can load the old ones you made, using the two arrows you find on the left and right side of the preset name (top side of the main window). With the in-App purchase you can access the Preset Manager, Control Manager and MIDI enable the Pad.

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.

Screenshots

GliderVerb4 screens
PolyIvoks Filter4 screens

Verdict

The call

The clearest difference is update cadence: PolyIvoks Filter at fortnightly against GliderVerb's every 4 months. PolyIvoks Filter also leads on iOS requirement (10.0 vs 17.0). GliderVerb's advantage is ratings volume (85 vs 21). On price, rating, review sentiment 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. GliderVerb sells 2 one-off in-app purchases and PolyIvoks Filter 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

On the App Store both sit at effectively the same score — 4.6 for GliderVerb against 4.7 for PolyIvoks Filter. Both are backed by a comparable volume of ratings — 85 and 21 respectively. Written reviews are what separate them: 80% of GliderVerb's written reviews are positive against 86% of PolyIvoks Filter's.

UpkeepUpdate frequency

GliderVerb ships an update every 4 months, PolyIvoks Filter fortnightly. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.

Scorecard3 real differences · 7 level
GliderVerb versus PolyIvoks Filter: the parameters behind the verdict, then further details
ParameterGliderVerbPolyIvoks Filter
PriceFreeFree
Rating4.6 (85 ratings)4.7 (21 ratings) — better
Positive reviews80.0% of reviews85.7% of reviews — better
Number of ratings85 — better21
Update frequencyEvery 4 monthsFortnightly — 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
Size13 MB17 MB
Age rating4+4+
DeveloperAmazing NoisesRRS, OOO

Customer experience

GliderVerb

All ratings85 ratings
Positive88.2%
Neutral3.5%
Negative8.2%
Written reviews50 reviews
Positive80.0%
Neutral4.0%
Negative16.0%

PolyIvoks Filter

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

In-app purchases

2 purchases

GliderVerb

One-time2
  • lala's presetsFree
  • Full Version$4.99
1 purchases

PolyIvoks Filter

One-time1
  • RRS PolyIvoks Filter Unlimited$4.99

Questions

Is GliderVerb free?
GliderVerb is free to download, with in-app purchases available.
Is PolyIvoks Filter free?
PolyIvoks Filter is free to download, with in-app purchases available.
Which has better reviews, GliderVerb or PolyIvoks Filter?
PolyIvoks Filter is rated higher. GliderVerb averages 4.6 out of 5 from 85 ratings, while PolyIvoks Filter averages 4.7 from 21 ratings.
Do GliderVerb or PolyIvoks Filter have ads?
Neither GliderVerb nor PolyIvoks Filter shows ads.
Which is updated more often, GliderVerb or PolyIvoks Filter?
GliderVerb ships an update every 4 months, and PolyIvoks Filter fortnightly. Most recently, GliderVerb was updated on September 22, 2026 and PolyIvoks Filter on September 13, 2026.

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