CatchKeeper
Find · Forecasting

When to go and why.

Tides, moon, wind and water, read together and turned into the only answer that matters: is it worth going and when?

Bite windows

The hours worth having.

Your day, scored hour by hour.

Not a weather report. An activity score for the water you actually fish, hour by hour, so you can pick the window instead of the day.

  • Hourly activity scored across the days ahead
  • The five best windows, picked out and explained
  • A week at a glance or a single day hour by hour
  • Wind and sea state across the week
  • Built for your spot, not the nearest capital city
CatchKeeper app — 24-hour view • Hourly activity
The evidence

Your grandad's almanac wasn't wrong to watch the moon.

It just didn't have the rest of it.

Solunar tables read one signal. We went to the literature on all of them — 21 peer-reviewed studies, independently checked — and weighed every factor by what the evidence supports, rather than by what the almanac always said.

  • Sun and moon position, hour by hour
  • Tide state, range and the spring–neap cycle
  • Water temperature against its seasonal normal
  • Wind, cloud and the fronts moving through
  • Long-range cycles and the last few hours, read together
  • Each factor weighted by the strength of the evidence behind it
CatchKeeper app — Weekly overview • Seven days
Conditions

Everything the fish are reading.

Moon, tide, light and weather.

Check an hour in the day and the score is revealed — every factor behind it, scored and shown. You don't have to second-guess a number when you can see everything that went into it.

  • Moon phase and how much of it is lit
  • Where the tide is and how far through the turn
  • Light through the day, from first to last
  • Pressure and which way it's moving
  • Conditions, temperature and wind
CatchKeeper app — Condition tiles • Moon · Tide · Light · Pressure
Your water

Local means local.

A season worth of patterns, not just a day.

CatchKeeper® works in zones. Actual bodies of water with their own behaviour, rather than dropping a grid over the coast and hoping. Each one carries its own season and its own history.

  • Zones mapped to real water — fresh, salt and brackish
  • Which months actually produce
  • Average air and sea temperature by month
  • And today's hours in the same view
CatchKeeper app — Zone • Seasonal view
Start your story

Every catch is a story. Yours starts with the next.

Free on iOS and Android. Know when your spots will fire, learn from every catch you log and share it with fishers who get it.