# strng vs TfxEcho

The clearest difference is chart position: TfxEcho at #185 against strng's unranked. strng's advantage is iOS requirement (9.0 vs 13.5). On price, rating, review sentiment and ratings volume there is nothing between them.

strng costs $4.99 and TfxEcho $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for strng against 4.7 for TfxEcho. Both are backed by a comparable volume of ratings — 35 and 12 respectively. Written reviews are what separate them: 84% of strng's written reviews are positive against 80% of TfxEcho's.

strng ships an update every 4 months, TfxEcho every 3 months. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | strng | TfxEcho |
| --- | --- | --- |
| Price | $4.99 | $4.99 |
| Rating | [4.7 (35 ratings)](https://appshunter.io/ios/app/strng/id993782289/reviews) | [4.7 (12 ratings)](https://appshunter.io/ios/app/tfxecho/id1523777426/reviews) |
| Number of ratings | **35** | 12 |
| Positive reviews | **84.4% of reviews** | 80.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Best chart rank | — | **#185** |
| Size | 4 MB | 1 MB |
| Requires iOS | **9.0** | 13.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Erik Sigth](https://appshunter.io/developer/385275335) | [Ryo Togawa](https://appshunter.io/developer/1474193056) |

## What reviewers say

### strng

[App page](https://appshunter.io/ios/app/strng/id993782289)

This app generates plucked string sounds using a physical modeling synthesis engine. It offers polyphonic voices, a built-in keyboard, and MIDI control. Shape your sound with delay and resonant filters, and integrate with other music apps.

**Highlights:** Physical modeling string synthesis, 16 voice polyphony, Built-in 25-key keyboard with aftertouch, MIDI controller support (USB/Wi-Fi), Stereo ping-pong delay, Two-channel resonant filter with LFOs, Audiobus, IAA, and AUv3 support

**Features:** Vision Pro support

**In-app purchases:** none


### TfxEcho

[App page](https://appshunter.io/ios/app/tfxecho/id1523777426)

**Currently charting:** #185 Top Paid · Music (US App Store)

This audio plugin offers a warm, dark echo effect inspired by analog delay units. It allows for adjustable delay times, feedback, and filters, with modulation capabilities and tempo syncing. The plugin captures high-frequency signals for a versatile sound.

**Highlights:** Echo and delay effect, BBD-inspired delay lines, Adjustable delay time (20-1200 ms), Feedback control (0-100%), Low-pass and high-pass filters, Modulation rate and width, Tempo sync

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is strng free?

strng costs $4.99, with no in-app purchases.

### Is TfxEcho free?

TfxEcho costs $4.99, with no in-app purchases.

### Which has better reviews, strng or TfxEcho?

strng and TfxEcho are both rated 4.7 out of 5 on the App Store, from 35 and 12 ratings respectively.

### Do strng or TfxEcho have ads?

Neither strng nor TfxEcho shows ads.

### Which is updated more often, strng or TfxEcho?

strng ships an update every 4 months, and TfxEcho every 3 months. Most recently, strng was updated on September 25, 2026 and TfxEcho on September 20, 2026.

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