RetroDisk
Emergency optical file transfer between two iPhones.
RetroDisk
Emergency Optical File Transfer
No connection? Pass the file anyway.
Two iPhones. Screens facing each other.
RetroDisk transfers a user-selected file directly between two iPhones through changing optical codes shown on their screens. No internet connection, Bluetooth, AirDrop, local network, cable, account, or external server is required.
Built for Small Emergency Files
RetroDisk supports files up to 1.44 MB. It is designed for compact documents and other small files when ordinary transfer methods are unavailable.
How It Works
- Open RetroDisk on two iPhones.
- Choose Send File on one device and Receive File on the other.
- Select a file on the sending iPhone.
- Hold both screens facing each other while the optical transfer progresses.
- Save the verified file on the receiving iPhone.
Key Features
- Direct iPhone-to-iPhone optical transfer
- No internet connection
- No Bluetooth or AirDrop
- No local network
- No cable
- No account or sign-in
- No developer-operated transfer server
- Up to 1.44 MB per file
- SHA-256 file-integrity verification
When every other option fails, the file still gets through.
Privacy by Design
RetroDisk does not collect data and does not contain ads, analytics, tracking, subscriptions, or in-app purchases. Selected files and camera images are not uploaded to a developer-operated server.
Privacy Policy
https://retronotes.cn/retrodisk/privacy
Support
https://retronotes.cn/retrodisk/support