15–20 April
Web port and QR scanning
Sign-in, QR scanning with the browser camera, investigation QR codes, document upload and an image editor.
ScanFai Web — Clinic scanner web app with the phone as a video camera
ScanFai in the browser
ScanFai Web is the clinic scanner web app for DocFai. It scans QR codes and documents in the browser, with no app to install. It can also turn the doctor's phone into the camera for a DocFai video consultation.
The problem
Not every clinic phone can install an app.
ScanFai started as a phone app, but not every phone in a clinic can install apps. Many clinic PCs also have no webcam, which made DocFai's video consultations harder than they needed to be.
No room for another app
Shared or locked-down phones in a clinic cannot always install apps from a store.
A desktop without a webcam
Many clinic PCs have no camera, so the patient on a video call could not see the doctor.
Pairing that gets in the way
Connecting a phone to a call usually means scanning a pairing code while the patient waits.
Patient data on the move
Medical data passes between phone, browser and server, and must not be readable along the way.
What we built
A clinic scanner web app that also lends its camera to the call.
We ported ScanFai to the web with Next.js, on the same DocFai login and backend. Then we added a video mode: the phone joins the doctor's active DocFai call as its camera, through LiveKit, without a pairing code.
Scanning in the browser
QR codes and documents are captured with the browser camera, with nothing to install, on Android, iPhone or a laptop.
The phone as the call camera
Start the camera on the phone and it joins your active DocFai call as a video source, through LiveKit.
No pairing code
The signed-in user is the key, so the phone finds the right call by itself and keeps the screen awake.
Encrypted and quiet
Request bodies are encrypted with AES-GCM, the local cache is encrypted, and data refreshes silently every 25 seconds.
Timeline
Three rounds over four months.
The web port and its scanning came first, in April. The video camera mode followed in July, and in August the app got DocFai's look and loads faster on slow networks.
20–28 July
The phone as call camera
A LiveKit video mode where the phone joins the user's active DocFai call, first with a pairing code, then without one.
12–13 August
DocFai look, lighter loading
DocFai's navy and blue palette with the Poppins font, and precompressed files served by nginx for slow clinic networks.
The result
Scan from any browser, film from any phone.
ScanFai Web works in any modern browser on a phone or a computer. Scans and uploads land in DocFai exactly as they do from the app, and a doctor without a webcam can still hold a video consultation.
KTKamal TizfaiCEO & Founder
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