Rivet 04 vs Synesthesia Synth
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rivet 04
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Rivet 04 - Comb is a resonant comb filter built for techno and industrial. Put it on drums, synths, or any bus to create metallic resonance, pipe tones, and reverb-like tails, from subtle shimmer to aggressive industrial texture. Comb works both as a standalone app and an AUv3 plugin. Comb combines feedback resonators with internal saturation for rich harmonic colour. Pitch the resonance to your key, add chord intervals for harmonic resonance, or push it into metallic destruction with the HOT mode. KEY FEATURES • Resonant comb filter with pitchable tuning and chord modes • DRIVE saturation inside the feedback loop • LFO modulation for shimmer and movement RIVET SERIES / OPEN SOURCE • Comb is part of my Rivet series of AUv3 effects plugins targeting techno and industrial genres. Comb uses algorithms by Chris Johnson (Airwindows), made available under MIT license. AUv3 Effect • Works in AUv3 hosts such as AUM, Drambo, Logic, and Cubasis IN-APP PURCHASE Comb includes In-App Purchases for optional tipping. Tipping does not unlock any additional features as all features are already available.
Synesthesia Synth
An experimental audio-visual instrument that allows users to sculpt evolving spatial audio by manipulating floating capsules. Position, rotation, and pulse changes affect tone, texture, and synchronized particle generation. It's a visual synthesizer, not a game.
- Experimental audio-visual instrument
- Sculpt evolving spatial audio
- Manipulate floating capsules
- Control tone, texture, and particles
- Visual synthesizer
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Synthaestesia is a free experimental audio-visual instrument. Three capsules float in space. Every contraction produces sound. Move them, rotate them, reshape their pulse — and sculpt evolving spatial audio. Position changes tone. Rotation alters texture. Delay generates synchronized particles. This is not a game. It’s a spatial synth you can see.
Screenshots
Verdict
The clearest difference is in-app purchases: Synesthesia Synth at none against Rivet 04's 3. Synesthesia Synth also leads on device support. On price and iOS requirement 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. Rivet 04 sells 3 one-off in-app purchases. Synesthesia Synth asks for nothing beyond the download.
| Parameter | Rivet 04 | Synesthesia Synth |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | — | Every 10 days |
| Ads | — | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | — | iPhone, iPad — better |
| Requires iOS | 17.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 141 MB |
| Age rating | 4+ | 4+ |
| Developer | Joe Topjian | MICHELE ZACCAGNINI |
In-app purchases
Rivet 04
- Tip - Small$0.99
- Tip - Medium$1.99
- Tip - Large$3.99
Synesthesia Synth
No in-app purchases









