(iOS App) If you want to record your activities with an Apple Watch and export the activities directly to RUNALYZE, we recommend the HealtFit App by Stéphane Lizeray , which not only supports the recorded activities of Apple Watch, but also all activities that other apps send to HealthKit.
We can really recommend this app for Syncing. We are in very good contact with the developer.
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Please let us know if you have wishes or have encountered bugs. We give our best to make Runalyze as good as possible for you. - Therefore we would be interested in your suggestions for improvement. In general most questions, problems and ideas are more appropriate to ask in the forum.