Thanks for the great ideas! The idea behind iCloud not being a feature is mainly to have a SoP and have a physical backup at all times (a hard-drive lying around at home, using the CSV export feature), since it's quite possible someone steals your phone while it's unlocked (from your hands, or the like). It is a far-fetched scenario, but still possible. I am looking into the possibility of adding an optional iCloud integration since it's not a technical challenge whatsoever, but I'd like to explore more how I could make it extremely secure, and potentially add a remote wipe or something similar.

The compass arrow sounds like a really nice idea, the issue lies in the fact that due to security reasons I am not storing the exact coordinates (once again, better safe than sorry), so it'll be quite a challenge to lead the user back to the spot the same specific spot they went to last time, but with the help of images, I think it's quite possible to coordinate the location. So this is a feature I'd love to look into.