Rivet 03 vs SuperGrid
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Rivet 03
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Rivet 03 ā 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.
SuperGrid
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SuperGrid is a three channel, generative step sequencer. It has build-in synth voices, but can also be used to control other instruments via midi. ⢠4Ć4 grid, three sequenced channels plus a live performance channel ⢠Euclidean trigger patterns and clock modifiers ⢠Per-channel drive, tempo-synced delay, reverb ⢠Weighted randomization with custom scales ⢠MIDI: per-channel out, clock in and out ⢠Background audio, session recall, template saving SuperGrid is free. A one-time purchase unlock additional synth voices and visual themes.
Screenshots
Verdict
The clearest difference is in-app purchases: SuperGrid at none against Rivet 03's 3. SuperGrid also leads on update cadence (every 9 days vs every 8 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Rivet 03 sells 3 one-off in-app purchases. SuperGrid asks for nothing beyond the download.
Rivet 03 ships an update every 8 months, SuperGrid every 9 days. The most recent releases landed on November 13, 2026 and October 31, 2026 respectively.
| Parameter | Rivet 03 | SuperGrid |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 8 months | Every 9 days ā better |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad ā better | iPhone |
| Requires iOS | 17.6 ā better | 18.6 |
| Further details ā not scored | ||
| Size | 14 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Joe Topjian | Jonathan Raymond |
In-app purchases
Rivet 03
- Tip - Small$0.99
- Tip - Medium$1.99
- Tip - Large$3.99
SuperGrid
No in-app purchases









