DEVICE CHECK · LOCAL & SIGNED

Before the call.
Before you buy.
Before you sell.

Check the camera, screen, battery, speakers, storage and more — right on the phone. Your personal data never leaves your phone. When the check is complete, you receive a digitally signed report with a QR code.

Two scenarios — one app

All set for the call?

60 seconds before an interview or a meeting: camera, microphone, audio and network. We explain what the results mean instead of simply showing pass/fail.

express · no report · free

Before you buy or sell

A full diagnosis: screen and dead pixels, battery, cameras, actual storage capacity, sensors. The result — a signed report with a QR: attach it to your listing or check the seller’s phone when you meet.

full check · report with QR · can’t be faked

See it run

A demo video will appear here after release

What we check

From a quick check to a full diagnosis

Each check is known by its own colour — one language across the app, the site and the reports.

Camerafront and rear fps · focus · flash
Microphonelevel & clarity noise · peak db
Speakersearpiece & stereo L / R balance
Networkspeed & stability mbps · jitter
Bluetoothheadsets & earbuds audio route
Screendisplay integrity pixels · multitouch · burn-in
Batteryhealth & charging health · charge
Storagecapacity & speed genuine · read/write
Sensorsmotion & light gyro · compass · light
Biometricsface & fingerprint face · fingerprint
Mechanicsbuttons & haptics vibration · buttons
Systemintegrity root · OS version
Call readinesscamera · sound · network 60 sec

What we don’t check

Some things can’t be checked automatically. Some things should still be checked in person when you meet the seller: theft or blacklist status by IMEI (dial *#06#), activation locks (iCloud Lock / Google FRP — visible only after a reset), water damage and the frame, glass and SIM tray, and whether the display and internal parts are original.

Principles

A check you can actually trust

01 · local

Tests run on the phone

Camera, mic, speakers and network are tested by the device itself — the check works even with a poor connection.

02 · private

No personal data in the report

Photos, videos and audio never leave your device. The report contains model, OS and test results — nothing that identifies you.

03 · signed

Report with QR

Every report is digitally signed using docam’s private key. The QR opens a page that verifies it is authentic.

04 · free

No ads

Core tests and signed reports are free. We don’t show ads and don’t sell user data.

Report & verification

The result of a full check — a document with a verifiable digital signature

Handing over a device or selling one used? The report with its QR confirms the condition. Open the link or scan the code and the verification page shows the report was issued by docam and its contents are unaltered.

Verification runs at docam.app/report/{id} — the page automatically checks the report’s digital signature.

Report ID
7MrUHmdopKM

Scan to verify — the page checks the digital signature.

Full check · 06.07.2026
stored until 04.10.2026

For business

A device-check API for your service

Embed signed checks into device intake, trade-in and logistics. 100 checks per month free, then by plan. API access is currently available on request — write to us and we reply within 1–2 business days.

Get in touch

API documentation will be available when the API launches.