# Secret Flow

> Secret Flow (iPhone/iPad app by ULLO.)

- Source: https://appshunter.io/ios/app/secret-flow/id1663167993 (this page in markdown: same URL + `.md`)
- Developer: [ULLO](https://appshunter.io/developer/1530090084)
- Category: Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 15.0 · 3 MB
- Languages: English
- Released: 2023-01-09
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/secret-flow/id1663167993/reviews.md

## What is Secret Flow?

Cardiac resonance is a breathing technique that brings you balance by syncing your cardiac activity and your breathing patterns.

Secret Flow estimates and computes the best breathing pattern, tailored to you, using Apple Watch sensors.

Like in music, where notes relate to one another through harmonic systems, you can choose your own harmonic, which will stand for the number of heart beats during a breathing period (inhale and exhale).

Follow the visual guide and the haptic feedback on your wrist to increase balance, focus and mindfulness.

Your personal dashboard will guide you towards a better understanding of your trends. You will be able to interpret the provided data,  in regards with your daily-life experience, your emotional context and social interactions.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $2.99 | one-time |



## Version history (last 5 releases)

### 1.2.1 — 2023-01-19

Haptic feedback gives a better audio & tactile feeling using a more discrete impulse.

### 1.2 — 2023-01-19

- automatic calculation of the progression of the haptic feedback to offers a better experience when sound is activated
- minor change on the logo (gradient homogeneity and rotation)

### 1.1.3 — 2023-01-18

- minor UI changes
- smoothed haptic curve 
- minor corrections in the F.A.Q. section

### 1.1 — 2023-01-11

In-app purchase for premium features

### 1.0 — 2023-01-09

No release notes.

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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 2026-05-16.*