Wont sync and trouble getting help

All the great reviews Ive read... But I cant get mine to sync. Used to have the old version (CalenMob) on my old iPhone 4s, which still works perfectly. I loved it. But when I got my new iPhone 6s, I had to re-buy this Tiny Calendar that works exactly the same as CalenMob... But Tiny Calendar never did sync with my Google calendar. Havent easily found a solution through the App web site, nor no response to 3-4 emails I sent over the past 2 days. If it would just sync without loosing everything and work like the old version, Id be a happy camper.

BirdDDoo about Tiny Calendar Pro