Tuning: HRV Stress Monitor

About this app

Know your stress before it knows you. Tuning reads your Heart Rate Variability (HRV) — the most reliable signal of your nervous system — and turns it into a daily Recovery and Energy score, so you can train smarter, sleep deeper, and stay calm under pressure. Built for iPhone and Apple Watch, Tuning transforms complex biometric signals into simple, actionable insights that help you stay balanced through work, travel, training, and everyday life. WHY TUNING • Spot stress before you feel it • Wake up to a personalized Readiness score • Know exactly when to push and when to rest • Improve sleep, focus, and recovery with daily guidance • Privacy-first — all biometric processing happens on device KEY FEATURES • HRV-based stress and recovery monitoring • Daily nervous system resilience tracking • Guided breathing and recovery sessions • Personalized recovery and energy insights • Apple Watch integration with hands-free sync • Calm, minimal wellness dashboard • On-device processing — your data never leaves your phone WHO IT'S FOR Athletes optimizing recovery. Knowledge workers fighting burnout. Travelers managing jet lag. Anyone who wants to reconnect with their internal rhythm. Tuning is not a medical device and does not provide diagnosis or treatment. All insights are intended for wellness and self-awareness purposes only. Find your balance again. Privacy Policy: https://www.notion.so/Privacy-Policy-35356eabf14680bcb2cde014fdf82754 Terms of Use (EULA): https://www.notion.so/Terms-of-Use-35356eabf146806ba831f3001c18a01d Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What’s New • Improved data syncing between iPhone and Apple Watch • Fixed missing HRV data and incorrect connection-status displays • Improved baseline-building progress and offline data handling • Added app version and connection information to Apple Watch settings • Enhanced overall stability and user experience

Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.

1. First observed Aug 8, 2026 · 5:23 PM Free