# Solfa - Solfeggio Frequencies — Sleep sounds & breathing guide

> Sleep sounds & breathing guide (iPhone/iPad app by ONTRAILS.)

- Source: https://appshunter.io/ios/app/solfa-solfeggio-frequencies/id6818970165 (this page in markdown: same URL + `.md`)
- Developer: [ONTRAILS](https://appshunter.io/developer/1570756171)
- Category: Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 86 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, European Portuguese, Chinese (Simplified, China), European Spanish, Chinese (Traditional, Taiwan)
- Released: 2026-10-07
- Data updated: 2026-10-24

## What is Solfa?

Make time for yourself with Solfa.

Solfa is an app for relaxation and building habits.
Freely layer soothing tones and nature sounds to create a soundscape for meditation, focus, or whatever suits your day and the moment.

• Solfeggio frequencies from 174 to 963 Hz, plus 432 Hz.
• Mix rain, streams, waves, wind, campfire and insect sounds with individual volume controls.
• Breathing rhythms such as box breathing and 4-7-8.
• A sleep timer and gentle visuals that respond to the frequency.
• Mood check-ins and a journal to look back on your sessions.

Choose sounds to match your mood and take a moment to breathe deeply.

## Is Solfa safe?

Not enough ratings yet to assess Solfa.

## Is Solfa legit?

Solfa - Solfeggio Frequencies appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Solfa is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-10-22

Improved performance.

### 1.0.0 — 2026-10-07

No release notes.

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All apps by ONTRAILS: https://appshunter.io/developer/1570756171

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-24.*