Social logins from Facebook, Linkedin, and co are often implemented to take out friction in the sign up process. Not as a replacement but as an addition to classic email-and-password-authentications.
Only very few applications build on the existing networks or use any additional services or data the 3rd party platform offers.
Does it really make things easier? 2 issues:
1. People forget with which account they signed up
2. You might assume that people are always logged in to these services, but that’s not the case. Example: when you follow a link in the Linkedin mobile app, and the Linkedin in-app-browsers opens, you are not logged in to Linkedin 🤯
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Be aware that the introduction of 3rd party logins has many downsides and long term implications. It’s also hard to remove them once they are introduced.
Written by Jonas Kamber, Digital Product Nerd and UX Enthusiast since 1998. LinkedIn