# Stone Echo vs FlangeII

The clearest difference is rating: FlangeII at 5.0 against Stone Echo's 2.8. FlangeII also leads on update cadence (every 6 days vs every 38 months) and price ($1.99 vs $2.99). Stone Echo's advantage is iOS requirement (10.0 vs 12.0). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Stone Echo costs $2.99 and FlangeII $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

FlangeII holds the better App Store score, 5.0 against 2.8. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Stone Echo ships an update every 38 months, FlangeII every 6 days. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Stone Echo | FlangeII |
| --- | --- | --- |
| Price | $2.99 | **$1.99** |
| Rating | [2.8 (4 ratings)](https://appshunter.io/ios/app/stone-echo/id1354390681/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/flangeii/id6751889588/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 6 days** |
| Monetization | Paid | Paid |
| Size | 9 MB | 13 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Aleksandar Mlazev](https://appshunter.io/developer/1093798140) | [Rob Jackson](https://appshunter.io/developer/1072346998) |

## 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


### FlangeII

[App page](https://appshunter.io/ios/app/flangeii/id6751889588)

This audio effect plugin offers a dual stereo flanger with a vintage sound. It provides flexible routing options like parallel and series, alongside adjustable rate, depth, width, and drive for a wide range of modulated effects. Soft limiting is included to prevent clipping.

**Highlights:** Dual stereo flanging, Vintage vibe, Parallel and series routing, Adjustable rate and depth, Stereo width control, Optional drive for warmth, Soft limiting for clipping prevention

**In-app purchases:** none


## Frequently asked questions

### Is Stone Echo free?

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

### Is FlangeII free?

FlangeII costs $1.99, with no in-app purchases.

### Which has better reviews, Stone Echo or FlangeII?

FlangeII is rated higher. Stone Echo averages 2.8 out of 5 from 4 ratings, while FlangeII averages 5.0 from 2 ratings.

### Do Stone Echo or FlangeII have ads?

Neither Stone Echo nor FlangeII shows ads.

### Which is updated more often, Stone Echo or FlangeII?

Stone Echo ships an update every 38 months, and FlangeII every 6 days. Most recently, Stone Echo was updated on October 7, 2026 and FlangeII on October 15, 2026.

---

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