Your scale. Your Strava.
Automatic.

WeightSync Scales connects your smart scale to Strava. Step on the scale — your athlete weight updates itself. No manual entry. Ever.

Download on the App Store See how it works

Premium available as annual plan or lifetime purchase

Works with

Withings
Fitbit
Garmin Coming Soon
Strava
How it works

Set it up once. Forget it forever.

1

Connect accounts

Authorize Withings/Fitbit and link to Strava. Takes 2 minutes.

2

Step on the scale

Weigh yourself as usual using your scale's app. Routine stays the same.

3

Automatic sync

App reads the measurement and pushes it to Strava automatically.

4

Always updated

Your Strava weight reflects reality. W/kg is always accurate.

Features

Everything a data-driven athlete needs.

Smart Scale Support

Native integration with Withings and Fitbit via official APIs. Garmin coming soon.

Automatic Sync

Weights pushed to Strava without any manual action required on your end.

Background Sync

The app checks for new measurements every 15 minutes, even when closed.

Automatic Retry Queue

If a sync fails due to connection issues, the app queues it and retries automatically.

Extra Weight Support

Add gear weight (helmet, kit) so Strava calculates your W/kg accurately.

Smart Reminders

Gentle nudges to weigh in and congratulations on your weighing streaks.

Pricing

Simple. Fair. No surprises.

Annual Plan

$4.99 / year

Renews annually. Cancel anytime.

  • Unlimited Syncs
  • Background Sync
  • Automatic Retry Queue
  • Garmin integration
  • All future features
Start Annual Subscription
Best Value

Lifetime

$9.99 / once
  • Pay once. Yours forever.
  • Never pay recurring fees
  • Lifetime access to updates
  • Less than 2 coffees
Get Lifetime Access

Note on Strava API Strava only allows updating the athlete's current weight. Historical records with past dates cannot be created. Your weight on Strava will always reflect your latest measurement.

FAQ

Common Questions

Yes. Any scale connected to your Withings account works. The app reads data directly from Withings' official API.
Yes. Aria, Aria 2, Aria Air, and any Fitbit scale linked to your Fitbit account are supported.
Garmin support is built and will be activated as soon as official API credentials are confirmed. Premium users get access automatically.
The app communicates directly with Withings, Fitbit, and Strava via OAuth. Your health data never passes through third-party servers.

Weighed. Synced. Done.

Join athletes who stopped updating their weight manually. Works with Withings and Fitbit. Garmin coming soon.

Download on the App Store

Requires iOS 16 or later. Compatible smart scale and Strava account required.