Intelligence for Every Session
Wave height predictions for the spots you surf, measured against you.
Save a spot, and SurfSeer predicts how big the waves will be when they break there, what shape they will be, and the best time to go.
Coming soon to iOS and Android.
- Coming soonApp Store
- Coming soonGoogle Play
7-day free trial with one spot.
Example data. The app shows this for every hour of the next 7 days.
SurfSeer predicts the height of the breaking wave, not the swell out at sea.
Many surf reports measure the back of the wave, or report swell height in open water. Both can be about half the height of the wave you see breaking.
Different reports also use different conventions, so the same number can describe very different conditions.
SurfSeer predicts the height of the wave as it breaks at your spot, then shows how that compares with your own height.
How SurfSeer works
Set up a spot once. After that, open the app to see the prediction.
- 1
Add a spot
Drop a pin on the map or enter a plus code. SurfSeer analyses the coastline and the sea floor at that point.
- 2
Set your preferences
Choose the wave type and size range you want, and add notes about the spot, such as the tide it needs.
- 3
Check the forecast
See predicted wave height, shape, wind and tide for each hour of the next 7 days, with the best time marked.
- 4
Log your session
Record how the waves compared with the prediction. SurfSeer adjusts future predictions for that spot.
Example data. Bondi Beach is used to show the steps; the forecast shown is not real.
What the app includes
All features- Breaking wave height
- Predicted height of the waves as they break at your spot.
- Best time to go
- The best window over the next 7 days, marked on the forecast.
- Wave shape
- Whether waves will spill, plunge, surge or collapse, based on the sea floor.
- Tide
- Daily tide charts, and your preferred tide range included in the prediction.
- AI assistant
- Ask questions about your spots and read a weekly summary. Uses your own API key.
- Works offline
- Predictions are calculated on your phone, so they still work without a signal.
- Session history
- Every session you log, with what was predicted and what you found.
Screens from the app
From the current development build: the day view, a full spot forecast, and your list of spots.



Screens from a development build, with the developer's own spots. Predictions are guidance, not a guarantee. Your own judgement in the water still comes first.
Optional AI assistant, using your own API key
The Seer answers questions about your spots and writes a summary of the week. It connects to an AI provider you choose, with an API key you add. Predictions work without it.
- Anthropic
- OpenAI
- Mistral
- Moonshot (Kimi)
- Privacy
- Data goes only to the provider you choose. Keys are stored in your phone's encrypted keychain, never in logs.
- Cost
- You pay the provider directly for what you use. SurfSeer plans do not include AI costs.
- Choice
- Five providers supported. Choose a low-cost model or the most capable one.
- Optional
- Without a key, every prediction still works. The prediction engine runs on your phone.
Free for 7 days, then choose how many spots you need
Every new account starts with a 7-day trial and one spot. Every plan includes every feature. Plans differ only in how many spots you can save.
Trial
Start hereEvery new account.
- Every prediction feature
- Session log
- AI assistant, with your own key
Explorer
RecommendedFor a few regular spots.
- 10 spots, each with its own settings
- 7-day forecast for every spot
- Sync across your devices
Pro
Most spotsFor travel or a long stretch of coast.
- 30 spots
- Useful for coastlines you don't know
- Priority support
Explorer from US$4.99 a month, Pro from US$9.99. Compare plans
Intelligence for Every Session
Coming soon to iOS and Android. Start with a 7-day free trial.
- Coming soonApp Store
- Coming soonGoogle Play