Name: Sauna Cold Plunge Timer
Author: RiversideArt

A protocol timer for sauna and cold-plunge rounds. Set your sauna minutes, cold seconds, and rest minutes once, then run the cycle: the watch buzzes and tones at every phase change so you never have to squint at a clock through the steam.

Rest goes after the cold plunge by default, the way most sauna routines actually run. If you cool down between the heat and the water instead, one setting moves it.

Lock the touchscreen. Sweat, steam and a wet forearm all read as taps, and an unlocked screen means a timer that keeps pausing itself. With the lock on, the buttons still start and pause the timer, and the screen tells you the lock is on, so it never looks frozen.

Readable in a dark sauna. The high-contrast display drops every dim grey to plain white and takes the phase name up a size. There is a bright black-on-white option for a daylit changing room.

Bought once, from the Connect IQ store. No subscription, no account, no email, no unlock code, no website to visit mid-session. The app asks for no permissions at all: it never touches your location, your network, or your sensors, so it cannot stop working because something failed to connect.

Try it free for seven days before you decide.

This is a timer, not medical guidance. Check your own watch's rating before taking it into heat or water.