Welcome to the Fitbit Community, @VeggieMe.
Thank you for your question.
Our web API and smartwatch SDK are open which means that the service you are wanting can actually integrate with Fitbit. We’d encourage you to make a suggestion to Mirror and direct them to our existing API and SDK and resources such as the web dev API community. You will likely be able to email them via their contact us page or customer support, or they may have their own ideas board. Or encourage them to reach out to Fitbit directly.
Have a nice day.
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