A timer for the cold, alone or on the dock.
Alone at the tub at home, it is a timer and a log. With a group at the lake, it is one session with a clock for each person, kept from a phone on the dock; once the watch app is out, anyone wearing an Apple Watch can time themselves. What we would store is the plan written before the app.
Open the web versionHear when the app is out
A first web version is up: the timer and the group board in any browser. The iPhone and Apple Watch apps are in development; nothing to download yet.
- Sam3:02Out
- Ryan2:41In
- Jo1:58In
Sunday at the lake · in the water
One session, a clock for each person.Out on your own time; the others keep counting.The person on the dock sees who is still in.
The same clock, at the lake in January.
The lake is a few minutes from the rink and the field, and the same people end up at it in January. The shared clock the sports apps run on turned out to be the thing a group plunge was missing: one session, a time for each person, and nobody counting out loud with wet hands.Ryan H
The group
Most people start together. Not everyone gets out together.
One phone on the dock runs the session. Go starts everyone's clock at once, and whoever stays dry keeps time for the people in the water. Everyone in the session sees the whole board.
Got in a minute late? Tap in when you are in, or nudge your start. Your clock runs from your moment, not the group's.
Out on your own time. Each person has their own out: a tap on the phone, or (planned) their own watch noticing. The others keep counting.
Several timekeepers. Two phones on the dock, each with a few people. Their taps merge into one board, the way two coaches' taps merge into one race.
Afterward. Your time goes into your own log if you have the app. If you don't, it stays in the session.
Planned: friends who aren't there follow the board from a link in any browser, no app, no account, the way a family follows a game. The board helps the person on the dock see who is still in; it does not make anyone safe.
Your time
Alone at the tub, a timer and a log.
Counts up from the moment you are in. Set a target if you want one. Each plunge goes into your log without typing: how long, and the water temperature if you know it.
No account for the tub. A solo plunger never sees a sign-in.
Tuesday, the tub · in the water
2:21
Target 5:00 · day 23 in a row
The watch
Your watch will keep your own time.
Planned: wear Apple Watch and your row fills itself in. On a watch that senses water, the clock starts when your wrist goes under and stops after you climb out; on an older watch you tap in and out. It times only the person wearing it.
Water, not a button. Planned for the watches that sense depth and water temperature. Splashing back in cancels the stop.
Heart rate will stay yours. It will live on the watch and in Apple Health, never in a shared session.
Wet hands. In and out buttons the width of the row; on the watch, water lock while you are in, so the water won't press buttons for you.
No signal at the lake. Saved on the phone first (and on the watch, once it's out), sent when it can be, merged if two phones kept time.
Cold water is dangerous. Plunge with someone and know your limits. This is a timer and a log, not a medical or safety device, and it makes no claims about what the cold does for you.
What our server would and wouldn't see.
The plan, written before the app: the same rules the three sport apps keep today. A plunger is a first name; that is all there is room for. A session would be encrypted on your phone with a key we never receive: the key rides inside the session link, in the part of the address a browser never sends to any server, ours included. We would store the encrypted file and couldn't open it. No ads, no analytics, no tracking.
Encrypted on your phone. We couldn't read it.
- First names in a session
- Times in and out
- Water temperature, if you type it
- Your log, if you sync it between your devices
Readable on our side.
- Your email and name, if you make an account Plunging alone needs none.
- A random id per device, when it joined and last saved
- Usage counts How many sessions, which features, the kind of phone. Never a name or a time.
- Request logs for a limited time
Never with us: heart rate, which stays on the watch and in Apple Health, and where you plunge, since no location would be stored. The privacy policy covers the three sport apps today; this app's own section is written when it ships, and these lines are checked against the app before it does.
ClubClock Cold Plunge today
- WebA first version is up at plunge.clubclock.app: the timer and the group board in any browser, for the people on the dock without the app. It is early and changes week to week.
- iPhone appIn development, on the same core as the sport apps.
- Early accessOne note when the iPhone and Apple Watch apps are out. Hear when it's out.
- Apple WatchIn development. Water sensing and water temperature only on the watches that measure them; older watches tap in and out.
- Not yetNo Android app. No guided breathing, no programs, no challenges: a timer and a log.
- HelpQuestions or the privacy page.