# TfxEcho vs TB Lowtone

The clearest difference is price: TfxEcho at $4.99 against TB Lowtone's $9.99. TfxEcho also leads on rating (4.7 vs 4.4). On review sentiment, ratings volume, update cadence and ads there is nothing between them.

TfxEcho costs $4.99 and TB Lowtone $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

TfxEcho holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 12 and 14 respectively. Written reviews complicate that: 80% of TfxEcho's written reviews are positive against 85% of TB Lowtone's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | TfxEcho | TB Lowtone |
| --- | --- | --- |
| Price | **$4.99** | $9.99 |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/tfxecho/id1523777426/reviews)** | [4.4 (14 ratings)](https://appshunter.io/ios/app/tb-lowtone/id6448315127/reviews) |
| Number of ratings | 12 | **14** |
| Positive reviews | 80.0% of reviews | **84.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 13 MB |
| Requires iOS | 13.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryo Togawa](https://appshunter.io/developer/1474193056) | [ToneBoosters](https://appshunter.io/developer/1472446500) |

## What reviewers say

### TfxEcho

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

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


### TB Lowtone

[App page](https://appshunter.io/ios/app/tb-lowtone/id6448315127)

This app is an innovative bass synthesizer and AUv3 plugin that uses loudness-domain harmonic synthesis for deeper, more consistent bass sounds. It features multiple oscillators, modulation options, and built-in effects, plus an AI randomizer for creating new patches.

**Highlights:** Loudness-domain harmonic synthesis, 3 analog-simulated oscillators, Voltage-controlled noise synthesizer, AI randomizer for patch generation, Extended LFOs and ADSR envelope, Pro quality effects (reverb, chorus, delay), AUv3 plugin support

**In-app purchases:** none


## Frequently asked questions

### Is TfxEcho free?

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

### Is TB Lowtone free?

TB Lowtone costs $9.99, with no in-app purchases.

### Which has better reviews, TfxEcho or TB Lowtone?

TfxEcho is rated higher. TfxEcho averages 4.7 out of 5 from 12 ratings, while TB Lowtone averages 4.4 from 14 ratings.

### Do TfxEcho or TB Lowtone have ads?

Neither TfxEcho nor TB Lowtone shows ads.

### Which is updated more often, TfxEcho or TB Lowtone?

TfxEcho ships an update every 3 months, and TB Lowtone every 3 months. Most recently, TfxEcho was updated on October 19, 2026 and TB Lowtone on October 12, 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.*