Based on our record, Steam Inventory Helper should be more popular than Runtastic. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Workaround is to use SHealth only, export gpx file, then import it through runtastic.com (Profile (Arrow Next to profile picture) ->Settings->Activity Import). The imported workout count for the challenges. Source: almost 2 years ago
I think I used steam in conjunction with https://steaminventoryhelper.com/. Source: over 1 year ago
Only thing I can think of would be https://steaminventoryhelper.com/ But I don't think it's open source :(. Source: almost 2 years ago
Strava - The #1 app for runners and cyclists
Enhanced Steam - A Chrome and Firefox browser extension that enhances the Steam storefront with all kinds of extra...
RunKeeper - Join the community of over 45 million runners who make every run amazing with Runkeeper. Track your workouts and reach your fitness goals!
Augmented Steam - Enhanced Steam fork by IsThereAnyDeal.
MyFitnessPal - Track the number of calories that you consume each day with MyFitnessPal. The app also lets you create a diet and track the exercise that you complete each day whether it's walking, running or some other type of program.
Steam Tools Hub - A set of Steam related WebApps built around trading cards, emoticons and backgrounds.