GliderVerb vs PolyIvoks Filter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Standalone and AUv3 plugin
- Modeled vintage filter
- LFO and envelope modulation
- Stereo output
- Scalable GUI
- Undo/Redo and A/B comparison
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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
Verdict
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
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.
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.
GliderVerb ships an update every 4 months, PolyIvoks Filter fortnightly. The most recent releases landed on September 22, 2026 and September 13, 2026 respectively.
| Parameter | GliderVerb | PolyIvoks Filter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (85 ratings) | 4.7 (21 ratings) — better |
| Positive reviews | 80.0% of reviews | 85.7% of reviews — better |
| Number of ratings | 85 — better | 21 |
| Update frequency | Every 4 months | Fortnightly — 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 | 13 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Amazing Noises | RRS, OOO |
Customer experience
GliderVerb
PolyIvoks Filter
In-app purchases
GliderVerb
- lala's presetsFree
- Full Version$4.99
PolyIvoks Filter
- RRS PolyIvoks Filter Unlimited$4.99
Questions
Is GliderVerb free?
Is PolyIvoks Filter free?
Which has better reviews, GliderVerb or PolyIvoks Filter?
Do GliderVerb or PolyIvoks Filter have ads?
Which is updated more often, GliderVerb or PolyIvoks Filter?
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