LibreBase app icon Open-source iOS · Apple Health

LibreBase

When Qardio shut down, the scales kept working over Bluetooth. LibreBase pairs with your QardioBase, reads your weight the moment you step on, and saves it straight to Apple Health — no account, no cloud, no Qardio app.

Open source · in development — TestFlight coming soon.

Compatibility

LibreBase has so far been tested only with the original QardioBase (1st generation, model B100). The QardioBase 2 and QardioBase X are not yet verified — they may work, but are currently untested.

Your scale, set free

A tiny, private client that does one thing well — gets your weight off the scale and into Apple Health, with no vendor in the middle.

Direct Bluetooth

Connects straight to the QardioBase over Bluetooth LE. No account, no cloud, and no need for the discontinued Qardio app.

Straight to Apple Health

Step on the scale and your weight is captured and saved to HealthKit automatically. Your data lives on your device.

In-app BMI

BMI is calculated in the app from your height, read from and synced back to Apple Health — not from the scale's stale profile.

Metric or imperial

Kilograms or pounds, centimeters or feet — weight and height follow your region automatically.

Battery & reconnect

See the scale's battery and connection status at a glance, with a one-tap reconnect when it drops off.

Private by design

No servers, no analytics, no tracking. LibreBase has no network code at all — everything happens on your phone.

No vendor, no middleman

Step 1

Pair

Open LibreBase and it finds your QardioBase over Bluetooth — no Qardio account or app required.

Step 2

Weigh in

Step on the scale. Your weight appears instantly and is saved to Apple Health, with BMI from your height.

Step 3

Own your data

Everything stays in Apple Health on your device. No cloud lock-in, ever — the whole reason LibreBase exists.

Open source

Inspect it

LibreBase is MIT-licensed and on GitHub. Read the code, file an issue, or help add support for other QardioBase models.

Keep your QardioBase alive

Coming to the App Store for iPhone. Tested with the original QardioBase (1st generation). A wellness logger, not a medical device.