Sign in Issues

Sign in Issues

I get onto Zoho Creator from my home PC, office PC, and my Ipad. I also can get on through my iphone through Safari without any problems.  But I tried downloading the app for my iphone and though I am signed in, it says i "don't have permission to access. Please contact Zoho support."  I am the owner of the app and the administrator and I find it frustrating that I can't get in.  I tried calling support but never got a response. 
Thanks.

Paul M.