# Sloow — Relaxation & Wellness

> Relaxation & Wellness (iPhone/iPad app by Kevin Duchier.)

- Source: https://appshunter.io/ios/app/sloow/id6759012190 (this page in markdown: same URL + `.md`)
- Developer: [Kevin Duchier](https://appshunter.io/developer/1855526890)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 64 MB
- Languages: American English
- Released: 2026-03-26
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/sloow/id6759012190/reviews.md

## What is Sloow?

Sloow guides you toward a state of calm through passive audio sessions, grounded in cardiac resonance science.

20-DAY PROGRAM
A two-phase journey — 10 days, then 10 days at a different resonance frequency. Each session is 20 minutes: sit down, listen, let relaxation settle in naturally.

HRV MEASUREMENT
• With the Kyto 2936 Bluetooth sensor (or any HRS-compatible sensor): continuous in-session capture (2-min baseline + 20-min audio + 2-min recovery), automatic background reconnect.
• Without a sensor: 5-minute finger PPG measurement using the camera (bookend on sessions 1, 10, 20).
Indicators: RMSSD, SDNN, heart rate, signal quality — all explained in plain language, tappable for clarity.

PROGRESS MAP
See your 20 days at a glance, browse session history, get a reminder for the next one.

READING CARDS
A curated selection of texts — Jung, Erickson, Frankl, Marcus Aurelius — to read or skip, at your pace.

PRIVACY
No health data is shared without your explicit consent. Your measurements stay yours.

Sloow is a wellness application. It is not a medical device and does not provide diagnosis, treatment, or prevention of disease.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Sloow Encouragement | $2.99 | per month |
| Sloow Beta | $3.99 | per month |
| Sloow Free | $0.99 | per month |
| Sloow Full price | $17.99 | per month |
| Sloow Support | $8.99 | per month |



## Version history (last 5 releases)

### 2.2.3 — 2026-09-03

What's new in 2.2.3:
• Fix: the end-of-program screen could lock up the app (inactive Continue button, missing tab bar)
• No end-of-program reading? A button now lets you take it right there, or later from your profile

### 2.2.2 — 2026-07-15

What's new in 2.2.2:
• Level 3: a new, even slower rhythm to explore after the program
• Your série measurements now appear in your profile
• A clear message when a reading couldn't be kept (signal too weak)
• End of program: Day 1/10 readings shown correctly whatever the sensor

### 2.2.1 — 2026-06-22

What's new in 2.2.0:
• History and data screens now show your real sessions
• Data export works
• Clearer messages: beta subscription, research sharing, checkpoint measurements
• Steadier heart-rate display during the finger measurement
• Support for standard Bluetooth heart-rate straps (Garmin, Polar…)
• Interface refinements: level names, language label, tab bar

### 2.1.2 — 2026-06-06

Séries — once you finish your program, keep going with repeatable séries whenever you want.
More flexible measurement: switch method (sensor or camera) or re-measure before your session.
Anonymous data contribution, now toggleable from the "My data" tab.
Stability and reliability improvements.

### 2.1.0 — 2026-05-25

Sloow 2.1.0 — Bluetooth measurement + 20-day program

What's new
• Bluetooth sensors (Kyto 2936 or any HRS-compatible sensor) for more precise HRV measurements. Pairing is optional at onboarding.
• Full per-session capture with sensor: 2-min baseline + 20-min audio + 2-min recovery, all persisted.
• Auto-reconnect on foreground (recovers from Bluetooth drops while listening with the screen locked).
• Headspace-style program map after every session: 20 days visualized, status per day, next session "tomorrow morning".
• Rewritten measurement report: every indicator (RMSSD, SDNN, HR, signal quality) is tappable to understand what it means, in plain language.
• Day-1 intro slide for the reading cards (Jung, Erickson, Frankl, Marcus Aurelius).

Fixes
• Architectural rewrite of the finger PPG measurement — stops correctly at 5 min, signal quality weighted across the whole measurement.
• Brand color (purple) consistent across all primary buttons.
• 143 automated tests covering completion state machine, cooldown, measurement-mode routing, post-session narrative.

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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 2026-09-10.*