H

H is a private messaging app on your phone. You don't need to create an account or leave your phone number. Your identity is the key to your phone. To add friends, show your QR code or scan their QR code. Messages are encrypted before being sent; only the recipient can decrypt them. The developer has no server to read your conversations. When crossing networks, encrypted packets may pass through public relays. Relays can see the connection time and node number, but not the content. You can send text, clickable links, photos, voice messages, and files. Photos can be compressed or left as is. Files are encrypted and stored on your phone. Conversations allow you to reply to specific messages, search, and edit sent text. Edits are sent to the recipient and marked "Edited." Searches can show only files, photos, or links. Deletion only occurs on this phone. Lists can be pinned, archived, muted, marked as unread, and filtered by all, unread, or groups. Silent conversations will still receive messages, but local notifications will no longer pop up. Group messages are sent directly between members. If someone is removed, subsequent messages will use a new group key, and the removed person will not be able to access new content. When someone is temporarily offline, you can add your own computer as an email address. The email address only temporarily stores sealed packets and deletes them upon confirmation. The email address is run by you. "Keep Connected" displays a persistent notification, allowing Android to receive new messages in the background. The notification only displays the name and "New Message," not the content. You can turn it off at any time. Messages can be exported as an encrypted file that you keep, with a password known only to you. This is not a cloud backup; the developer does not have a copy. "Erase Identity" in the settings will delete the key, messages, and exported file from this phone. Please note before use: • No developer push service. After turning off "Keep Connected," the app may not receive messages in the background. • No voice or video calls are supported, and multiple phones cannot be used with the same identity simultaneously. • The camera is only used for scanning QR codes. The microphone is only used to record the voice you press.