Smart Scale Sync

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  1. How does your money back guarantee work?

    If you are not 100% satisfied within the first 30 days, email us and we'll give you a full refund. For information on our pricing please scroll down to Subscription Details.

  2. What weight metrics do you upload to each destination?

    Garmin ConnectWe upload weight, body fat %, body water %, skeletal muscle mass, bone mass, and a timestamp for the weigh in (when possible - your scale might not provide all of these values). These metrics are all visible within the Garmin Connect mobile app. Today only the date and the weight are visible within the Garmin Connect web application.
    TrainerRoad/Strava/Concept2/PelotonWe only upload weight. The other metrics are not supported by TrainerRoad, Strava, Concept2 Logbook, and Peloton.
    FitbitWe upload weight, body fat %, and a timestamp for the weigh in (when possible - your scale might not provide all of these values). Other metrics are not supported by Fitbit.
    Polar FlowWe upload weight and a timestamp for the weigh in. Other metrics are not supported by Polar Flow.
    WithingsWe are not able to upload weight to Withings (the Withings API does not support this functionality). You can only use Withings as a source of weight data, you can not use it as a destination for weight data.
  3. Why do you need my credentials and how are these kept secure?

    Garmin*, TrainerRoad, Concept2, Peloton, and Polar Flow do not provide a free API for 3rd party developers that allows weight uploads. We protect your credentials within commercially acceptable means to prevent loss and theft, as well as unauthorised access, disclosure, copying, use or modification. Please refer to our Privacy Policy & Terms of Service for official and legally binding details. Your credentials are captured securely within a page running no 3rd party javascript hosted on a different domain (served within an iframe). They are then encrypted with AES-192, using a cipher that is further encrypted via a key managed through AWS Key Management Service. Your encrypted credentials are stored within Stripe customer metadata (where they are likely encrypted again by Stripe). Your encrypted credentials are fetched and decrypted within a temporarily provisioned container (AWS Lambda) only when a weight upload is triggered.

    * We do not require your Garmin credentials if you set Garmin as your source. Garmin credentials are only needed when it is configured as a destination.

  4. Will I be able to unlink my fitness accounts from Smart Scale Sync?

    Yes. You can unconnnect your accounts at anytime from the settings page of Smart Scale Sync. When you perform these actions your encrypted API keys/credentials are deleted immediately.

  5. How long will it take for my measurement to sync after I've weighed myself?

    Typically the service will sync new measurements within 5 minutes. If weights are not syncing we are likely already aware of the issue and looking into it, but feel free to reach out to us at

  6. Do you sync my weight measurements from the past?

    Our subscription service will only sync measurements taken after your subscription has started and fitness accounts have been connected. However, if you would like to sync your full weigh-in history from Withings to Garmin, we now offer this as a separate serivce for $34.99. We do not (yet) offer a full history sync between Fitbit and Garmin, or between other platforms (shoot us an email with what you are looking for).

  7. Can I configure multiple platforms to be my weight source at the same time (for example: Garmin and Withings)?

    No, you can only designate one platform to be a weight source at a time.

Subscription Details

There are two subscription plans: Yearly and Monthly. On the yearly plan you are billed $14.99 once a year (~$1.25/month). On the monthly plan you are billed $2.99 once a month.

Both plans come with a 30-day money back guarantee for first time customers and give you access to Smart Scale Sync's service which syncs your Withings, Fitbit, or Garmin weight scale measurements with Garmin Connect, TrainerRoad, Strava, Concept2 Logbook, Peloton, Polar Flow, and/or Fitbit. Smart Scale Sync will upload new weight measurements going forwards (once your fitness accounts are connected) but historical measurements will not be synced.

It is likely that at some point one of the fitness platform connections will break when they make changes on their end. These are out of our control but we will do our best to restore service asap. In the event of such an interruption of service, you have the option to cancel your subscription and receive a prorated refund.

You may cancel recurring billing at anytime and your membership will remain active until the end of the current billing period. You may switch plans at anytime by canceling your current plan and then signing up for the alternate plan. In this case, we apply a credit for the time unused on the old plan, and charge for the new plan starting right away, resetting the billing date.

Note: If you don't connect your Smart Scale Sync account to a source (Withings, Fitbit, or Garmin) then there will be no weigh-ins to sync. You can manage these connections on the Smart Scale Sync settings page once you have a subscription.

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