Support

Something not right, or an idea? Email altonphotography@gmail.com and you'll get a reply from the person who makes TideMark.

Why does a tide time differ from my tide table?

For 55 UK harbours TideMark works tides out on your phone from real tide-gauge records, and elsewhere uses a global model. Around the Solent and Poole the tide sits almost still around high or low water for a couple of hours, so the single minute any table calls "high water" can differ by more than you'd expect even though the height is right. Heights use Chart Datum, the same as your tide table.

Where do wind and waves come from?

Weather models from the Met Office and ECMWF, and marine wave models, via Open-Meteo.

How do I join a competition?

Ask the organiser for the 12-character code. In the app: Compete → sign in → Join with a code. Catches you log after joining count automatically.

How do I get my catches out?

Catches → Export gives you a spreadsheet. Your data is yours.

How do I delete my account?

In the app: Compete → Delete account. If you can't get into the app, see deleting your account.