# ToneTherapy vs Sigfre

The clearest difference is in-app purchases: ToneTherapy at none against Sigfre's 2. Sigfre's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Sigfre sells 2 in-app purchases, starting at $9.99 per month. ToneTherapy asks for nothing beyond the download.

## The numbers

| Metric | ToneTherapy | Sigfre |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/sigfre/id6762210169/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 6 MB | 339 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Neville Forsythe](https://appshunter.io/developer/1819374550) | [Tyler Fuller](https://appshunter.io/developer/1893379106) |

## What reviewers say

### ToneTherapy

[App page](https://appshunter.io/ios/app/tonetherapy/id6755366302)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sigfre

[App page](https://appshunter.io/ios/app/sigfre/id6762210169)

This app uses a unique audio engine to layer custom neural scripts and binaural beats beneath your existing audio content. It offers a 90-day protocol for cognitive alignment and can be used during workouts or study sessions.

**Highlights:** Patent-pending sub-perceptual audio engine, Phase-coherent monaural beats and isochronic tones, Customizable Neural Scripts, Background audio coexistence with other apps, 90-Day Alignment Protocol, Seamless loop mastering

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sigfre Pro Monthly | $9.99 | per month |
| Sigfre Pro Annual | $99.99 | per year |


## Frequently asked questions

### Is ToneTherapy free?

ToneTherapy is free to download, with no in-app purchases.

### Is Sigfre free?

Sigfre is free to download, with in-app purchases available.

### Do ToneTherapy or Sigfre have ads?

Neither ToneTherapy nor Sigfre shows ads.

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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.*