Giving people wrong advice could be harmful, or cause them to distrust the app, even if the app is right most of the time, Ledger said. 'The biggest challenge right now is getting those insights into an extremely high level of accuracy and reliability,' Ledger said. As a result, many health apps provide only descriptive information, (i.e., just your stats). In addition, when developers make apps that provide 'prescriptive' information about your health - that is, give you advice on how to be healthier - they have to tread carefully because they need to make sure those insights are accurate, Ledger said. For example, there is no place to track menstrual cycles or your exposure to ambient light (which some finesses trackers do track). (However, it's not clear if there's an 'app for that' yet.)Īlso, right now, the Health app can aggregate a number of measurements from your apps, but it's not an all-inclusive list. Still, tracker aggregators could help users find connections in their data that they might not notice otherwise, like whether their workout quality changes based on temperature or humidity levels, he said. For example, if you have one app that tracks your workouts and one that tracks your steps, and you go for a run, the apps will have to know that that's one event - which is not an easy problem to solve, Ledger said. Ledger said there are other challenges to aggregating information. And second, only one nutrition data point showed up at a time - the app didn't show me a graph of my intake over time. However, when I tested the app, there seemed to be a few bugs in communication between MyFitnessPal and Apple Health: First, my nutrition data did not show up on the Health dashboard until I restarted my phone and entered my nutrition information again. Graphing information for a single nutrient, like sodium, may be a useful way to keep track of whether you're getting too much or too little of it.

Myfitnesspal apple health