Hey Florian,
Thanks for posting this project. I just checked the details of the project and would love to develop an awesome high quality GPS based AR hybrid app for iOS & Android.
we have a very strong hand in Unity development + AR and VR based applications. We have developed tons of AR based apps.
We have a separate office for AR/VR/MR development and have experienced developers who are equipped with proper hardware to develop . We are always keen to test new technologies and limits.
Needless to say , we would love to be a part of your project and take things forward.
Looking forward for your reply,
Regards,
Manish,
Square Pixel.