Stone Echo vs milliVerb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stone Echo
This app creates a unique echo effect with adjustable frequency modulation, inspired by Mayan pyramid acoustics. It offers musical and experimental soundscapes, functioning as a standalone application or an AUV3 plugin.
- Frequency changing echo effect
- Phase modulated frequency
- Standalone app and AUV3 plugin
- Adjustable time, feedback, and level
- UFO mode for experimental sounds
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Echo effect Audio Unit V3 inspired by the mayan pyramids acoustic echo. I come up with a complex phase modulated frequency of the echo so you can change it’s frequency signature. It is kind of changing the material of the reflective surface and I called it “Stone F”. I have made the echo to sound more music friendly to me but there is button called “UFO” and if you press it the effect is more close to the mayan just shifting the frequency backwards (I liked that better). You can also control the feedback of the phase modulation. The effect can work as a stand alone app and as an audio unit AUV3 plug-in. Stone Echo is an effect that is heavy on the CPU Controls: - Time - time offset of the echo - Stone F - frequency response of the echo - Feedback - echo feedback - Level - the volume of the echo - UFO - heavy modulated echo
milliVerb
Transform your iPhone or iPad into a professional reverb processor for live audio. Shape rich algorithmic spaces in real-time, visualize your reverb with a spectral display, and control parameters with MIDI. Ideal for musicians and vocalists seeking immersive sound.
- Real-time reverb shaping
- Spectral display visualization
- MIDI control and tempo sync
- Live audio processing
- Feedback cancellation
- Customizable presets
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milliVerb turns your iPhone or iPad into a real-time reverb instrument for voice, instruments, and other live sound. Shape the effect as you play with hands-on controls designed for performance. • Build a space with expressive reverb and modulation controls. • Shape tone with a visual EQ, including filters and adjustable bands. • Tune low-, mid-, and high-frequency decay independently. • Use adaptive feedback EQ to reduce persistent resonances. Feedback depends on the room, speakers, microphone, and volume; protection cannot guarantee that feedback will never occur. • Record a dry take on demand, then audition it with reverb and adjust the mix. milliVerb’s live processing, recording, playback, and factory presets are free to use without a session timer. milliVerb Full is an optional one-time purchase that unlocks dry WAV saving, processed-mix export, and custom presets, favorites, and performance sets. Restore a previous purchase in Settings. Recording starts only when you tap Record. Takes are stored in the on-device Recordings library. Exporting or sharing is initiated by you.
Screenshots
Verdict
The clearest difference is review sentiment: milliVerb at 100% against Stone Echo's 50%. milliVerb also leads on price (Free vs $2.99) and rating (5.0 vs 2.8). Stone Echo's advantage is in-app purchases (none vs 1) and ratings volume (4 vs 1). On ads and device support 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
milliVerb is free to download; Stone Echo costs $2.99 up front. milliVerb sells 1 one-off in-app purchase. Stone Echo asks for nothing beyond the download.
milliVerb holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively. Written reviews point the same way: 50% of Stone Echo's written reviews are positive against 100% of milliVerb's.
Stone Echo ships an update every 38 months, milliVerb weekly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.
| Parameter | Stone Echo | milliVerb |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 2.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 38 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 9 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | Angelo Milli |
Customer experience
Stone Echo
milliVerb
In-app purchases
Stone Echo
No in-app purchases
milliVerb
- milliVerb Full$4.99









