PolyIvoks Filter vs TB GonioMeter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
TB GonioMeter
Analyze stereo image imbalances and frequency correlations in real-time. Ensure your audio content is high quality and compatible with mono down-mixes, crucial for mobile entertainment. This tool offers detailed waveform inspection and balance spectrum analysis.
- Real-time goniometer for stereo image waveforms
- Real-time correlation meter and spectrum
- Real-time stereo balance and spectrum meter
- Color themes for UI
- Mono down-mix compatibility check
- Optimized for iPad, compatible with iPhone/iPod Touch
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ToneBoosters GonioMeter is a one-stop stereo image analysis AUv3 plug-in. Easily identify stereo image imbalance or frequency ranges with negative correlation. Ensure that the content you create is of high quality and mono down-mix compatible, an essential requirement for mobile entertainment! The ToneBoosters GonioMeter stand-alone app captures the microphone input and processes the signals in real time. Since most iOS devices only have mono microphone capabilities, we strongly suggest to use the integrated AUv3 plug-in (app extension) version instead. To use it as a plug-in, use an AUv3-compatible host app such as Steinberg Cubasis, Apple Garageband, Audio Evolution Mobile Studio, Auria, AUM, or others. ToneBoosters GonioMeter will appear in the list of Audio Unit extensions for effect plug-ins. Key features: - Real-time goniometer to inspect stereo image waveforms - Real-time correlation meter and correlation spectrum meter - Real-time stereo balance an stereo balance spectrum meter - Color themes for the user interface - Max screen support in Garageband - Optimised for iPad and compatible with iPhone and iPod Touch What you should know: - Licenses acquired for this platform are not compatible with other platforms. - Audio Unit (AUv3) extensions require an iPad mini 2, iPad 4 or later models.
Screenshots
Verdict
The clearest difference is in-app purchases: TB GonioMeter at none against PolyIvoks Filter's 1. TB GonioMeter also leads on review sentiment (100% vs 86%). PolyIvoks Filter's advantage is update cadence (fortnightly vs every 2 months) and iOS requirement (10.0 vs 13.0). On price, rating, ratings volume 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. PolyIvoks Filter sells 1 one-off in-app purchase. TB GonioMeter asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for PolyIvoks Filter against 4.6 for TB GonioMeter. Both are backed by a comparable volume of ratings — 21 and 23 respectively. Written reviews are what separate them: 86% of PolyIvoks Filter's written reviews are positive against 100% of TB GonioMeter's.
PolyIvoks Filter ships an update fortnightly, TB GonioMeter every 2 months. The most recent releases landed on September 13, 2026 and September 8, 2026 respectively.
| Parameter | PolyIvoks Filter | TB GonioMeter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (21 ratings) — better | 4.6 (23 ratings) |
| Positive reviews | 85.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 21 | 23 — better |
| Update frequency | Fortnightly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | RRS, OOO | ToneBoosters |
Customer experience
PolyIvoks Filter
TB GonioMeter
In-app purchases
PolyIvoks Filter
- RRS PolyIvoks Filter Unlimited$4.99
TB GonioMeter
No in-app purchases








