I just downloaded FTN95 personal so that I could test out the compatibility with Xamarin mobile development, but FTN95 does not integrate with VS2015.
I have a large amount of Fortran code which I would like to use with numerical modeling on the iPad. I suspect that any .NET language can be used to create a portable class library that can be run on iOS and Android mobile devices. This would require working with the Xamarin integration that comes free with VS2015.
Right now I am in the process of porting a large C/Fortran electromagnetic modeling code to c# in preparation for creating a mobile app. This is very tedious and requires extensive testing and debugging in order to port code that has already been extensively tested. I would rather just reuse the Fortran. I think the key to making that work is FTN95 integration into VS2015. When can that integration be expected.
Although Xamarin only natively supports c#, there is documentation on their website showing how to use Visual Basic libraries for mobile development. I believe something similar could be done with FTN95.