Transfqr

Transfqr sends files from one phone to another using light. Pick anything up to 50 MB - a photo, a PDF, a voice memo, a ZIP - and the app streams it as live QR codes on your screen. Point the other phone's camera at it and the file rebuilds itself in seconds. Works on a plane, in a basement, off-grid. No internet, no accounts, no cloud.

HOW IT WORKS

1. SEND - open Transfqr, tap "Send a file", pick anything from your library.
2. WATCH - Transfqr breaks the file into fountain-coded chunks and broadcasts them as QR codes, around 12 frames per second. The lighthouse mascot blinks while broadcasting.
3. CATCH - on the other phone, open Transfqr, tap "Catch a file", aim the camera at the sender. Progress fills as chunks arrive. Done when the bar is full.

PRIVACY BY DESIGN

• No server. There is no Transfqr backend. Files never leave the two devices.
• No account. No email, phone number, or identifier required.
• Camera permission is used only to scan QR codes from the sender.
• Storage permission writes the received file to your library.
• Anonymous analytics and crash reporting are opt-in, both anonymous, both toggleable in Settings.

WHAT YOU CAN SEND

• Photos and videos from your library
• PDFs, ZIPs, voice memos, documents, anything else under 50 MB
• Multiple files in sequence (one transfer at a time)

WHEN IT SHINES

• Sending a file to someone with no Wi-Fi or cellular signal
• Cross-platform transfers (iPhone to Android, no AirDrop dependency)
• Privacy-sensitive contexts (no cloud trail, no metadata in third-party servers)
• Anyone tired of "upload to cloud, send link, wait for download"

Light. Local. Yours.