Help – Songsterr Tabs & Chords Review

The only app I’ve used to get TABS. Just got a new phone, went from Samsung to Apple and had the 1 time payment version on Samsung and now I can’t use the app anymore without paying the $5 monthly fee. Even tried the “restore purchase” option and still nothing. Help?
Review by Vaughn099 on Songsterr Tabs & Chords.