Know the water before you go

Maris Blue reads the wind, the waves and the water at the spot you fish, five days out, and shows you where fish may rise. All on one calm map.

Join the waitlist

Coming soon. Join the waitlist and we’ll send you one invitation to try it before release, and one note on launch day.

A coast drawn for fishing

Open the map and you’re already on the shore. Coastal Calm shows the water the way an angler reads it, by day and by night. Tap a lake or a river to see what the map knows about it, drop a pin where you want to fish, or save a stretch of coast for the days without signal.

Maps by Mapbox. Water details come from the app’s own data; where nothing is known, nothing is made up.

Water-body sheet open over the map, showing the name, type and location of a lake (build 1.0.0-1-20261016)

The week’s wind and water, at your spot

Wind and gusts, waves and swell, water temperature, pressure on the move, sun and moon, and the tides where they’re reported. Pick the exact point you’ll stand on and plan the morning the night before. Premium goes hour by hour where the data allows.

Forecast data from WeatherAPI, refreshed on a schedule through our own gateway. It’s a forecast, not a promise.

Read the forecast disclaimer

Pebble beach and a calm, hazy sea at Pensarn, Wales

IJsselmeer, Netherlands52.7825° N · 5.3500° E

Forecast page for a chosen point: five day chips, the day’s conditions, and cards for wind, waves, water temperature and pressure (build 1.0.0-1-f0c7a2c1)
  • Wind7–17kt
  • Waves0.2–1.2m
  • Water12°C
  • Pressure1017–1022hPa

As the app showed it on 16 October 2026 for this point: a forecast for that day, not a live reading.

Fish Rise shows you where to start

Draw an area on the map and ask. Our server reads the forecast and the water around your spot and ranks where fish are most likely to rise, with the conditions behind every answer. It’s a score to think with, not a guarantee: it reads the water, not the fish.

Free shows you a sample. Premium runs the real analysis.

Read the forecast disclaimer

Fish Rise results on the map off Kadıköy, Istanbul: three marked areas with their scores out of 100 and the hour chips (build 1.0.0-1-f0c7a2c1)

Off Kadıköy, Sea of Marmara12:00, three areas ranked

  • Area 111/100
  • Area 29/100
  • Area 39/100

The scores the app gave on 16 October 2026 for one run. Low numbers are honest numbers: a quiet day is a quiet day.

The rest of a good day

Fishing Guide

Species pages that tell you where a fish lives, what it bites and when it feeds, with a tip from someone who has caught it. The guide launches with 16 species.

Species page in the Fishing Guide with habitat, bait and timing for one species (build 1.0.0-1-20261016)

Four more things worth having in your pocket.

Made for iPhone and Android phones.

Free and Premium

Free

Everything you need for a day on the shore.

The map, the five-day forecast every three hours, the Fishing Guide, saved spots, condition alerts and offline maps.

Premium

For planning the whole session, not just the day.

Adds the full Fishing Forecast, hour by hour where the data allows, and real Fish Rise results.

Prices come with the store listing.

Questions

When can I install it?

Not just yet, and we’d rather get it right than rush it. Join the waitlist and you’ll get one invitation to try the app before release and one note on launch day, nothing more.

Where does the forecast come from?

From WeatherAPI, through our own gateway, which caches it and refreshes on a schedule. Nothing on screen is live to the second: it’s a forecast, and the forecast disclaimer says what that means.

What is Fish Rise?

A score our server works out for the area you choose, from the forecast and the water around it. It tells you where fish may rise. It doesn’t promise you’ll catch one.

Does the map work without signal?

The regions you download do: open Offline Maps, pick a stretch of coast and save it. The forecast and Fish Rise still need a connection.

Which languages does it speak?

The app launches in 13 languages. This site speaks English and Turkish for now; the rest follows.

What does the waitlist store?

Your address, the version of the consent text, the time, the page language and path. No IP address, no device fingerprint, no cookies. Every mail has a one-click unsubscribe, and we delete the list after the launch announcement.

How do I reach you?

Write to [email protected] for anything about the app, or [email protected] for anything about your data.

Get the first invitation

Leave your e-mail and we’ll send one invitation to try Maris Blue before release, then one note when it launches. Nothing else.

We keep only your address, the version of the consent text, the time, and the page language and path.

Join the waitlist