Briskwire™

Rafał Stańczuk

About this app

Briskwire™ moves any file between two Android phones using nothing but a screen and a camera, or a back-to-back NFC tap. No accounts. No cloud. No internet permission. Works in airplane mode. And now QR transfers can be end-to-end encrypted.

Built for the moments and places where Wi-Fi, Bluetooth and cellular aren't an option — backcountry, secure sites, airplane mode, no-Wi-Fi conferences, clinics, vaults.


TWO OFFLINE TRANSPORTS

• ANIMATED QR CODES — the sender displays a fast sequence of QR frames; the receiver's camera reads them. Works on any device with a screen and a camera.

• NFC TAP — hold the two phones back-to-back and the file streams directly over short-range radio. Faster for small-to-medium files when both devices have NFC.

Pick QR or NFC on every send. NFC stays visible but greyed out on devices without it — QR works everywhere.


NEW: END-TO-END ENCRYPTION

Choose plain or encrypted on every QR send. The receiver shows a one-time key code; the sender scans it; both phones derive a shared secret (X25519 + HKDF) and seal the file with AES-256-GCM. Matching 6-digit codes on both screens rule out a man-in-the-middle. Keys live in memory for one transfer, are never stored, and never leave the two phones — no server, no key escrow. Nobody, not even the developer, can decrypt your transfer.


WHO IT'S FOR

• Hikers, climbers, outdoor crews — GPX tracks and route plans past LTE
• Field engineers, surveyors, inspectors — configs and handover notes offline
• Journalists, lawyers, researchers — contracts and sensitive PDFs, now end-to-end encrypted
• Travellers in airplane mode — boarding passes to the seat next to you
• Anyone inside a vault, exam room, audit floor, or no-Wi-Fi conference


DETECT — UNIVERSAL BARCODE SCANNER

• Reads QR, Aztec, Codabar, Code 39/93/128, Data Matrix, EAN-8/13, ITF, PDF417, UPC-A/E
• Locks onto every code in frame at once — no centring required
• Group scans into named sessions; rename, delete, or export to CSV
• Runs fully on-device via ML Kit — no cloud lookups


SMART ANDROID ACTION HANDOFFS

Decoded codes don't just sit there. Briskwire™ reads the type and hands off locally via Android Intents: URL → browser · phone → dialer · email → mail app, pre-filled · SMS → messaging, ready to send · geo → Maps · vCard/MeCard → add to contacts · VEVENT → add to calendar · Wi-Fi QR → Connect pre-fills SSID and password in Android Settings. No third-party APIs called.


GENERATE TYPED CODES

• Pick a type: Wi-Fi · Contact · SMS · Email · Calendar · Geo · URL · Text
• Briskwire™ builds a valid QR, Aztec, Code 128 (and more)
• Tune format, size, and error-correction level
• Save the image, share, send to a printer, or regenerate
• Fully offline — nothing is uploaded


PRIVACY POSTURE

• Briskwire™ does NOT declare the INTERNET permission. Android cannot let the app reach a server, ever.
• Optional end-to-end encryption with ephemeral keys — nothing written to disk
• No accounts. No cloud. No telemetry. No analytics. No crash reports.
• Three permissions only: Camera, NFC, Change Wi-Fi state (just for the Connect action on a scanned Wi-Fi QR)
• Privacy policy bundled with the app — nothing fetched online to display it


BUILT WITH CARE

• Five languages: English, Polski, Українська, Español, Deutsch
• Force dark mode, or follow the system
• Interrupted send? Resume in one tap; scan progress survives restarts
• Integrity-failure transfer sheet with one-tap retry
• Guided tour you can replay any time
• Works on Android 11 (API 30) through Android 16


WHY BRISKWIRE™ EXISTS

Most "simple" file-transfer apps quietly phone home, ask for permissions they don't need, or fall apart the moment the radios go off. Briskwire™ was built for when the network is gone, banned, or simply not an option — and for people who never wanted their files in a cloud.

If two phones can see each other or touch back-to-back, Briskwire™ works. That's the whole bar.


Briskwire™ — file transfer through the air, literally.

What’s new

New Features:
- Encrypted transfers: scan the receiver's key code, then compare a 6-digit security code before opening the file.
- Privacy policy explains offline encryption policy.