Stone Echo vs MetaSkew
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
MetaSkew
This audio effect processor offers granular delay and pitch-shifting for creating width, motion, and unique textures. Shape delay times, pitch intervals, grain size, and stereo spread with built-in LFO modulation and extensive preset categories. It's ideal for producers, musicians, and sound designers seeking controlled sonic damage and experimental soundscapes.
- Granular delay and pitch-shifting
- Adjustable grain size, smoothing, and gain
- Stereo spread and asymmetry control
- Built-in LFO modulation with multiple shapes
- Extensive preset categories for production jobs
- MIDI Learn for hardware control
- Standalone app and AUv3 plugin support
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MetaSkew is a granular delay and pitch-shift effect built for producers, musicians, and sound designers who want one processor for width, motion, ambience, and controlled damage. What you can shape: - Delay time from tight doubling to long phrase memory - Pitch from deep drops to shimmer intervals - Grain size, smoothing, and gain for soft clouds or chopped repeats - Feedback, pan, mix, and output for clean blend control - Latch for frozen textures and phrase-end captures - Spread and Skew for stereo width, asymmetry, and unstable character The signature Skew control is the fastest way to move from polished enhancement into unstable texture. Keep it low for subtle smear, or push it with Spread, Feedback, and LFO movement for broken motion. Modulation is built in. Three LFOs can run free or sync to musical divisions, with Sine, Triangle, Sample & Hold, and Saw shapes. Route movement to Delay, Pitch, Grain, Smoothing, Feedback, Mix, Pan, Spread, or Skew, then push subtle drift or obvious rhythmic motion. Presets are designed around real production jobs, not random patches. Browse Utility, Width, Pitch, Atmosphere, Motion, Rhythmic, Freeze, Destruction, and Signature categories. Save your own snapshots, recall them later, and keep user presets synced through iCloud when available. For hands-on control, MIDI Learn lets you map parameters to hardware. Default assignments cover the core effect, and MIDI CC broadcast can reflect parameter movement in connected setups. Use MetaSkew for: - Vocal throws and shimmer trails - Wide synth doubles and guitar halos - Drum stutters, glitch fills, and tempo-locked motion - Frozen pads and transition beds - Experimental resynthesis, smear, and warped ambience MetaSkew includes a standalone app and effect plugin for host apps that support AUv3 plug-ins.
Screenshots
Verdict
The clearest difference is price: Stone Echo at $2.99 against MetaSkew's $14.99. Stone Echo also leads on ratings volume (4 vs 1) and iOS requirement (10.0 vs 17.0). MetaSkew's advantage is rating (5.0 vs 2.8) and update cadence (every 5 weeks vs every 38 months). On ads, in-app purchases, monetization model 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
Stone Echo costs $2.99 and MetaSkew $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.
MetaSkew holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
Stone Echo ships an update every 38 months, MetaSkew every 5 weeks. Both last shipped on October 24, 2026.
| Parameter | Stone Echo | MetaSkew |
|---|---|---|
| Price | $2.99 — better | $14.99 |
| Rating | 2.8 (4 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 38 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Vision Pro — better |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Aleksandar Mlazev | Christian Thompson |
Customer experience
Stone Echo
MetaSkew
In-app purchases
Stone Echo
No in-app purchases
MetaSkew
No in-app purchases









