Fortran 90 code compiler

What I need is a Fortran 90 compiler for iOS. I need to cross compile a project but I'm stuck with Fortran sources: "gfortran: error: this compiler does not support arm64". I cannot find any compiler for iOS that I can just download and use. So your job would be to find something that could work for iOS and compile it if it's needed. Be sure it works with Fortran 90. I found F2C, which works but only for Fortran 77. Thank you!