PhotonDrop v28
Optical ready

AIR-GAPPED FILE TRANSFER

Files move through light.

Pair through the camera. Transfer optically while offline, or accelerate over an end-to-end encrypted direct connection.

01Choose

Pick any file on the sending phone.

02Point

Hold the receiving camera over the full screen.

03Save

Missing frames recover automatically; SHA-256 verifies the result.

Send

SENDER

Choose the payload

The 256-bit transfer key is shown only through the optical stream. Servers never receive the key or plaintext file.
Receive

RECEIVER

Use the camera

The camera stays entirely on this device. Point it at the four colored corners on the sending screen.

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Camera-key encryptionThe file key and plaintext remain on the two devices.