Contrast: Sauna & Cold

One app for your whole recovery ritual: sauna, cold plunge and guided contrast therapy. Built for the wrist, readable through steam. THREE SESSION TYPES • Sauna: one giant timer in a deep red heat world, heart rate and temperature kept small on purpose • Cold Plunge: an ice-blue screen where your exposure time dominates. Enter the water temperature before you start. Your watch has no water sensor, and this app never shows numbers it did not measure • Contrast Therapy: alternating heat and cold phases with your rounds and phase lengths set before you start (default 3 rounds of 3:00 heat / 1:00 cold) GUIDED SWITCHES, SILENT BY DESIGN • 10-second warning before every phase change, a clear vibration pattern you feel through water and steam • Vibration only, never sound. Saunas are quiet, and you share them • The screen changes its color world with the phase: deep red heat, ice-blue cold. Read your phase at a glance, even half underwater ONE BUTTON, ALWAYS A WAY OUT • One press starts a session, with a short 3-2-1 countdown and no dialogs in your way • BACK always saves and ends, and a confirmation screen shows exactly what was stored • Stopping with START offers Resume, Save or Discard, and going back resumes your session safely YOUR WEEK, IN MINUTES • Simple bar chart: minutes of heat and minutes of cold per day, with weekly totals • Stored locally on the watch. No phone, no account, no cloud • No scores, no "readiness" numbers, just honest minutes SAVED TO GARMIN CONNECT • Sessions are saved as activities with temperature graph, heat and cold time, contrast rounds, water temperature (when you entered it) and phase-labelled laps as Connect IQ fields • If the activity cannot be written, the session is kept on the watch instead and still counts in your weekly stats One-time purchase. No subscription, no ads. The app sends nothing anywhere on its own; sessions saved as activities sync through Garmin Connect just like any other activity on your watch. GETTING STARTED Press START and scroll to Contrast in the activity/app list. On some watches it appears under Connect IQ apps. If it does not show up right away, sync once with the Garmin Connect app. Supports 46 watch models.

Initial release: sauna timer, cold plunge with manual water temperature, guided contrast therapy with 10-second haptic warnings, and a weekly heat and cold minutes chart.