Read your Bluetooth bathroom scale with no account and no subscription

Name: Weighline
Author: Growing Peas

Step on your scale and Weighline shows your weight on your phone in seconds, with no pairing. There is no sign-up, no cloud and no ads, and your weigh-ins never leave your phone.

Get it on Google Play Android 12 and later · free with one profile

A weigh-in for Emma: 153.0 lb with Weight locked, 1.1 lb less than 19 hours earlier, 3.0 lb to go to a 150.0 lb goal, BMI 24.6 and a body fat estimate of 27.6 %. — A weigh-in, the history with its trend, and a second person on the same scale.

The history screen for Emma over 90 days: a chart falling from 167.1 lb to 151.9 lb with a trend line, a pace of 0.7 lb a week, this week against last week, and every weigh-in listed. — A weigh-in, the history with its trend, and a second person on the same scale.

If your scale’s app now wants a subscription

Many budget scales come with an app that now shows ads or asks for a monthly subscription. Weighline reads the same scale directly, from what it broadcasts over Bluetooth. You never create an account, and the basics stay free.

Which scales it reads

Scales made for the OKOK International app, including those built on Chipsea chips.
Xiaomi Mi Smart Scale and Mi Body Composition Scale.
LeaOne, Senssun, Laica and Amazfit scales.

The Xiaomi S200 and S400 are not read: they encrypt their weight with a key tied to the Xiaomi account.

If yours is not recognised, the app lists what it hears nearby and lets you email it to me, so I can add your scale. Weighline is a separate app and not affiliated with OKOK International, Chipsea, Xiaomi, LeaOne, Senssun, Laica or Amazfit.

What it does

Reads many low-cost Bluetooth smart scales and body fat scales the moment you step on, with no pairing.
Locks the weight, files it under the right profile and shows the change since last time.
A history chart over 30 days, 90 days, a year or everything, and a weekly summary.
BMI, and a goal per profile with a progress bar.
Kilograms, pounds or stones.
A home-screen widget, a daily reminder if you want one, and weigh-ins typed by hand.

What is free, and what one purchase adds

Free: weighing, one profile, the full history and chart, BMI, a goal with its progress, the change since your last weigh-in, and undo when you delete a weigh-in.

Pro, one purchase that stays yours: several profiles, each weigh-in recognised and filed under the right person automatically; a body fat estimate on scales that measure impedance; a 7-day trend line and your pace per week; CSV export of your whole history and automatic CSV backup to a folder you choose. Google Play shows the price in your own currency. No subscription, no ads, no account.

Wellness only

Weighline is a wellness app. It is not a medical device and does not diagnose, treat, cure, or prevent any medical condition. BMI and body composition figures are estimates from published equations and can differ from other apps.

Who makes it

I do: one person, on my own, under the name Growing Peas. Mail goes to [email protected] and I answer it myself. Your weigh-ins stay on your phone and are never uploaded. Bluetooth is only used to listen to the scale, and the app never asks for your location. The privacy policy says so in full.