Kithra

Kithra is a camera-first, one-to-one asynchronous video messenger for iPhone and iPad. Record a video, send it, and catch up when it fits your schedule. Video content is encrypted on your device before upload. The relay stores ciphertext for delivery and cannot decrypt the video. It still processes account, contact, routing, delivery, and security metadata as explained in Kithra's Privacy Policy. Before messaging, verify a contact by comparing the complete 60-digit safety number or scanning signed QR codes on both devices. If a device identity changes, Kithra pauses sending and playback until you verify again. Features include invite codes and QR invitations, sent/delivered/played status, adjustable playback speed and a draggable timeline, block and metadata-only report controls, in-app account deletion, configurable self-hosted HTTPS relays, and open-source client and relay code.…