A free app for Android, by IGN - Géoportail.
The "Geodesie de Poche" is a service of geodetic data that provides, without any delay, all the information you need for your projects.
It allows you to find any point in France with a few clicks, no matter where you are, even if you don't know the exact address. The "Geodesie de Poche" also offers you a way to find all the data sheets that correspond to the points you want, as well as the benchmarks you want to use.
The service allows you to download the data sheets for offline use, which means you can work on your projects even if you don't have a connection to the Internet.
