Arc App might be a bit more popular than Runtastic. We know about 1 link to it since March 2021 and only 1 link to Runtastic. 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: over 1 year ago
I'm using http://bigpaua.com/arcapp on my iPhone, and even the GPX track it records in the background is good enough to do some mapping, for example when I'm hiking or biking. Source: over 2 years ago
Strava - The #1 app for runners and cyclists
Gyroscope - Gyroscope is a personalized dashboard for tracking your life.
RunKeeper - Join the community of over 45 million runners who make every run amazing with Runkeeper. Track your workouts and reach your fitness goals!
Swarm - Swarm lets you earn prizes and compete with friends based on the places you go.
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.
Exist - Track everything in one place, understand your life.