# Stone Echo vs SGA Phoenix

The clearest difference is price: Stone Echo at $2.99 against SGA Phoenix's $24.99. Stone Echo also leads on iOS requirement (10.0 vs 15.8). SGA Phoenix's advantage is rating (5.0 vs 2.8) and update cadence (every 14 months vs every 38 months). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Stone Echo costs $2.99 and SGA Phoenix $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SGA Phoenix holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

Stone Echo ships an update every 38 months, SGA Phoenix every 14 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Stone Echo | SGA Phoenix |
| --- | --- | --- |
| Price | **$2.99** | $24.99 |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/stone-echo/id1354390681/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/sga-phoenix/id1565520345/reviews)** |
| Number of ratings | 4 | 4 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 14 months** |
| Monetization | Paid | Paid |
| Size | 9 MB | 5 MB |
| Requires iOS | **10.0** | 15.8 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Shattered Glass Audio](https://appshunter.io/developer/1565520347) |

## What reviewers say

### Stone Echo

[App page](https://appshunter.io/ios/app/stone-echo/id1354390681)

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.

**Highlights:** Frequency changing echo effect, Phase modulated frequency, Standalone app and AUV3 plugin, Adjustable time, feedback, and level, UFO mode for experimental sounds

**Features:** Vision Pro support

**In-app purchases:** none


### SGA Phoenix

[App page](https://appshunter.io/ios/app/sga-phoenix/id1565520345)

This app provides authentic analog preamp sounds for music production. It simulates various triode and JFET circuits in real-time to add warmth, color, and depth to mixes and masters. EQ can be adjusted before or after the preamp, with auto gain and oversampling for professional results.

**Highlights:** Authentic analog sound simulation, Triode and JFET preamp models, Adjustable EQ placement, Auto Gain control, Automatic oversampling, Wet/Dry mixing

**In-app purchases:** none


## Frequently asked questions

### Is Stone Echo free?

Stone Echo costs $2.99, with no in-app purchases.

### Is SGA Phoenix free?

SGA Phoenix costs $24.99, with no in-app purchases.

### Which has better reviews, Stone Echo or SGA Phoenix?

SGA Phoenix is rated higher. Stone Echo averages 2.8 out of 5 from 4 ratings, while SGA Phoenix averages 5.0 from 4 ratings.

### Do Stone Echo or SGA Phoenix have ads?

Neither Stone Echo nor SGA Phoenix shows ads.

### Which is updated more often, Stone Echo or SGA Phoenix?

Stone Echo ships an update every 38 months, and SGA Phoenix every 14 months. Most recently, Stone Echo was updated on October 7, 2026 and SGA Phoenix on October 11, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*