Basic Safety Features Require Purchase

Most apps back up to iCloud and all apps have this capability, so forcing users to buy that protection for their files is greedy and could potentially be a major concern if the user does not have a recent enough manual back-up. This safety precaution is a basic feature that should be free with the download. In-app purchases should be limited to features such as more customization and storage space, not peace of mind that your files are safe in case of a lost or damaged phone.

CelestePink about Secret Apps Photo Vault, v3.4.3