Swagger / mobile app using API

Hi,
I need a new a fork of an existing app:
project is:
- a fork of Cyclos 4 mobile app: [URL visible pour les membres Pro] We need to make it need more "user friendly", customise color, etc...
- you may use this API [URL visible pour les membres Pro], and make it for both android and ios.
An example of what we need: [URL visible pour les membres Pro]
- But the idea is more to have an employee for a longterm cooperation, so keep it in mind when making your reply.