Google Play (android) : https://play.google.com/store/apps/details?id=fr.cgtsocgen.app

App Store (iOS) : https://apps.apple.com/us/app/la-cgt-soci%C3%A9t%C3%A9-g%C3%A9n%C3%A9rale/id1510487927?l=fr&ls=1