The banner ads at the bottom of the screen block the FAB (floating action button, for those that dont know) so when I try to ad a photo to an album I have to do finger acrobatics to hit the button. It usually takes 6-7 tries before I hit it. Sometimes it moves up to get out from behind the ad, but it is rare and when it does it takes a long time to happen. I would pay a one time IAP to remove the ads, but the only IAP Im offered is a monthly subscription with more features than I need. So either fix the FAB or add a "Remove Ads Only" IAP.
@RikRipper about Secret Photo Vault: Keepsafe, v6.5