Apparently only option is google sign in
Response from developer
Hi basccwr! Sorry if we missed your message! We just checked our emails, private messages, everywhere... but we can't find your note. Regardless, yes, we will offer sign up options other than Google - including Apple, Facebook, etc. The rub is, for us, there is a significant cost to make that happen. We could either invest in creating another door to entry... or use that same $$$ to make RunBuddy better! We have an update going live any moment that does just that - greater GPS accuracy, Strava compatibility, you can use RunBuddy as an activity tracker now, your Buddy can text/call you faster, etc - there's a lot in this next update! For now please bare with us. The additional sign ins are coming. Thanks for your patience! -Scott Sutter, COO