A few notes:
- like sharing on Endomondo, this feature will be in permanent beta. Runtastic does not officially allow third party apps like mine to upload. Therefore, I need to go through some alchemy to make it works. If they change something on their side, my app will break.
If it happens, tell me. Be nice, thanks. If you can't be nice, don't use my app.
- Runtastic does not accept FIT files, and FIT is the native format for many Garmin devices. I'm working on a high-fidelity FIT-TCX converter, but meanwhile, you can already use the app on several Garmin models not based on FIT (like the good old FR305, or the FR405, the TCX-based edge models like the 705, the GPX-based models like the Dakota 20, etc.). If you Garmin uses FIT internally, you'll get an error message at this time.
Once again: the right thing to do is to have patience, understand that I'm working on this stuff in my spare time, help the app to grow by spreading the word, perhaps add a +1 in a comment here to let me know that you need it.
The loser thing to do is to go to Google Play and complain. So don't :-).
I'm not a Runtastic user, so I would appreciate if you guys could tell other people in the community that now they can upload from their Garmin to Runtastic using their phone / tablet, no PC involved anymore.