Comparison

Rivet 03 vs Synesthesia Synth

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

Head to head
About

Rivet 03

Features
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Rivet 03 — Verb is a gritty, characterful reverb for iPhone and iPad. Use it on its own, or load it as an AUv3 plug-in in your favourite host app. Choose one of three engines, Concrete, Pit or Bloom, then turn the ROOM control to move smoothly through each engine's spaces. Shape the tail with Decay, Tone, Drive, Clamp, Stagger and Grit. Everything sits on one screen in five sections: PRE EQ, SPACE, COLOR, POST EQ and OUT. The TAIL display shows the reverb fading away and how long it takes to die out, so you can see the space you're building. KEY FEATURES • Concrete, Pit and Bloom reverb engines • A ROOM control that morphs smoothly between each engine's spaces • Decay, Tone, up to 18 dB of Drive, Clamp, Stagger and Grit for texture • Width from mono to extra-wide • Three-band EQ before and after the reverb, with sweepable mids • Mix and Output controls that keep your dry signal clean and in time • Four quality settings, from Off to HQ • Factory and user presets • Fits small plug-in windows and makes use of larger ones, with full iPhone and iPad layouts AUv3 PLUG-IN Works in AUv3 host apps such as AUM, GarageBand and Cubasis. Every feature is included; optional tips don't unlock anything. Verb includes Airwindows MV2-derived code by Chris Johnson under the MIT License.

About

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.

Highlights
  • 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

Rivet 032 screens
Synesthesia Synth2 screens

Verdict

The call

The clearest difference is in-app purchases: Synesthesia Synth at none against Rivet 03's 3. Synesthesia Synth also leads on update cadence (every 10 days vs every 8 months). On price, ads, device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Rivet 03 sells 3 one-off in-app purchases. Synesthesia Synth asks for nothing beyond the download.

UpkeepUpdate frequency

Rivet 03 ships an update every 8 months, Synesthesia Synth every 10 days. The most recent releases landed on November 13, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 7 level
Rivet 03 versus Synesthesia Synth: the parameters behind the verdict, then further details
ParameterRivet 03Synesthesia Synth
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 8 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size14 MB141 MB
Age rating4+4+
DeveloperJoe TopjianMICHELE ZACCAGNINI

In-app purchases

3 purchases

Rivet 03

One-time3
  • Tip - Small$0.99
  • Tip - Medium$1.99
  • Tip - Large$3.99
None

Synesthesia Synth

No in-app purchases

Questions

Is Rivet 03 free?
Rivet 03 is free to download, with in-app purchases available.
Is Synesthesia Synth free?
Synesthesia Synth is free to download, with no in-app purchases.
Do Rivet 03 or Synesthesia Synth have ads?
Neither Rivet 03 nor Synesthesia Synth shows ads.
Which is updated more often, Rivet 03 or Synesthesia Synth?
Rivet 03 ships an update every 8 months, and Synesthesia Synth every 10 days. Most recently, Rivet 03 was updated on November 13, 2026 and Synesthesia Synth on November 5, 2026.

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