marée.info Essentiel is a free weather application for Android users developed by Bolo Informatique in the Lifestyle category. It provides the essential tide predictions for each port in France, Belgium, and Anglo-Normandes. The application includes the clock of tides for the moment's tide, precise height calculated at the moment, the table of high and low tides, the calendar of coefficients with search, and the calendar menu with coefficients and moon phases. The data is based on the official predictions of the SHOM (Service Hydrographique et Océanographique de la Marine) and is calculated annually and consolidated from the tide gauge readings along the coast.

The application is designed to work without the internet for reliability and safety at sea. However, the installation, updates, and subscription management require a 4G or WIFI connection. The application offers two options: a free version with access to tide predictions for three days and the calendar of coefficients, and a 12-month subscription providing complete access to tide dates. The subscription is linked to the user's Google Play Store account and is automatically renewed by default. The application also includes a selector of port, an analog clock of the tide, and a note pad that has several pages.