Features
Everything you'd check on the shingle
Six screens, each answering one question before a swim. All of it works offline once it has loaded, and none of it sells your swims.
One line, every morning
The swim verdict
Most forecasts are written for surfers and sailors. They tell you the waves are 0.4 metres and leave you to work out whether that’s a pleasant dip or a cold slap in the face.
Saltglass scores every reading the way a cautious swimmer would, then says it in one line. Tap the verdict to see which reading tipped it, and the window shows the hours when everything lines up.
- Water temperature from the nearest buoy or shore station
- Wind direction scored for your beach, not just its speed
- Swell period, so a long, slow swell doesn't surprise you
- A swim window for the morning, in your own time zone
15 minbetween updates
The morning, laid out
Hour by hour
The verdict is for now; the forecast is for planning. Every bar is an hour, and the ones that work for swimming are lit up.
Wind is shown the way it matters on the beach: blowing off the land (flat water) or onto it (chop building), not as a compass bearing you have to translate at six in the morning.
- Seven days, hour by hour
- Good hours marked at a glance
- Wind shown as offshore or onshore for each spot
7 daysof hourly forecasts
Someone always knows
Check-ins
Swimming alone is a choice many of us make; swimming without anyone knowing shouldn’t be. A check-in takes two taps: pick how long you’ll be and who to tell.
When you’re back on the stones, tap “I’m out”. If you don’t, Saltglass reminds you first, and only then sends your buddy a text with the spot, the time you went in and the conditions at the time.
- Your buddy doesn't need the app, just a phone
- A reminder five minutes before your time is up
- Start and stop from your Apple Watch
- Group check-ins for clubs
2 tapsto start a check-in
The coast at a glance
Spots nearby
Wind that ruins one beach often leaves the next cove flat. The spots screen lists every spot nearby with its verdict, so a rough morning at your usual place doesn’t have to mean no swim at all.
Each spot knows which way it faces, so wind and swell are judged for that beach, not for the coast in general.
- 212 spots on the Wrenmouth coast
- Add your own spot on Pro
- Sorted by distance or by conditions
Your season, swim by swim
Swim log
The log fills itself in from your check-ins: where, how long and how cold. Add a note if you like, or a swim you did without the app.
Over a season it becomes a record of the water too. Most of us are surprised by how many swims we fit in once we can see them.
- Logged from the check-in, or added by hand
- Water temperature saved with every swim
- Stays on your phone unless you turn on sync
Apple Watch, made for wet hands
On your wrist
The phone stays in the bag; the watch comes in with you. Start a check-in from the watch on the shingle, swim, and tap “I’m out” with a cold finger when you’re back.
The complication shows the water temperature and the end of your swim window, so you can tell at a glance whether there’s time for one more lap of the buoy.
- Complications for the water and your window
- Big buttons that work with wet fingers
- Logs the swim's distance with the watch's GPS
Also in the app
Works offline
The morning's forecast is saved when you open the app, so it still answers at the end of a lane with no signal.
Apple Watch
Water temperature and your window on your wrist; check-ins start and end from the watch, even with the phone in your bag.
Widgets
The verdict, the water and the tide on your home and lock screen, refreshed with every update.
Private by design
No ads and no trackers. Your swims stay on your phone unless you turn on sync, which is end-to-end encrypted.
Your units
Celsius or Fahrenheit, metres or feet, km/h, knots or Beaufort, set once.
Share a swim
Send a spot's conditions to the group chat as a card, so nobody has to ask "is it on?"