Ebb: Stress & HRV Tracker

Ebb shows tension before you feel it. Put a finger on the camera and in a minute the app measures your pulse and heart rate variability (HRV) and compares them with your own baseline. With a watch connected through Health Connect, data flows in by itself.

Stress in a minute
Pulse, HRV (RMSSD, SDNN, pNN50) and Baevsky's stress index from your phone camera. Three clear zones — calm, choppy, storm — and a tip for what to do right now.

Recovery and daily energy
A morning score from HRV, resting heart rate and sleep. The energy gauge shows how your reserves drain through the day and refill in calm hours.

Sleep with stages
Duration against your goal, deep and REM sleep, efficiency and continuity. No watch? Log your sleep by hand.

Activity and daily inputs
Rings for calories, exercise and steps. Water, caffeine, daylight and mindful minutes with goals, charts and water reminders you can log straight from the notification.

Insights that explain
Week vs last week, a monthly calendar, hour-by-hour rhythm, sleep debt, resilience and takeaways: your heaviest weekday, how short nights affect stress, which habits and mood tags help.

Breathing and SOS
Seven techniques — resonance breathing, physiological sigh, box, 4-7-8 and more — plus a before/after reading so you can see the effect. The "Storm right now" button gives you 90 seconds to breathe out.

Mood, habits, report
A mood journal with tags next to your heart data, your own habits with streaks, a PDF report for your doctor or coach, home screen widgets.

No sign-up
Data stays on your phone. The camera works only during a reading; frames are never saved or sent anywhere.

Free: 3 readings a day, the core numbers, 7 days of history, two breathing techniques and three habits. Awaytix Pass unlocks unlimited readings, recovery, the daily curve, sleep stages, all insights, every technique and the report — and removes ads. One subscription unlocks all Awaytix apps.

Ebb is a wellness tool, not a medical device. It does not diagnose anything and does not replace a doctor.