App works but no support

Ive used this app for a couple of years and the app itself works fine. However I want to load the passwords on other devices and am unable to back up on any other device. When I go to the app support page it basically doesnt exist. So if anyone knows how to back up my iPhone password manager to my iMac so I can load it on my iPad please let me know. I tried the URL back up on Wi-Fi and it does not seem to work. I can get to the URL and I hit the back up button but it gives me a file that I dont know what to do with and my iMac cannot open it.

Crike Mate about Password Manager Pro (Lock Privacy in Safe Wallet & Wi-Fi Data Backup App)