Does HashPhotos send any photos or information to the server? I forgot the passcode. What is the System Library and the Local Library? Where are the photos and data added in the app stored and how can they be deleted? Can keywords be synced between iPhone and iPad? How to write keywords into IPTC metadata section. What is "System Keywords" option in the settings. Is there a way to sync photos in the local library? Is there a HashPhotos for macOS? Why HashPhotos doesn't show "Recently Deleted Album"? What is the password for the zip file created using Settings > Data > Backup. Why are some identical images not appearing in the Find Duplicates results? Where are photos in the Local Library stored? What happens to photos in the Local Library when switching to a new device? What happens to photo information (keywords/memo/ratings) when switching to a new device? How iOS manages photos when a photo is edited. Why do functions like Resize, Adjust Date/Time(with Update Metadata Option) and Edit Metadata create a new image and delete the original? Where is the People & Pets album? Why is the Instagram image download feature not working?