Board Thread:Geometry Dash Update Discussion/@comment-26869370-20160216001803/@comment-27413644-20160406132543

@Epines Of course you can easily update Geometry Dash to Update 2.1 without losing your progress, if your game is purchased from Google Play Store or App Store (I bought the game from Google Play via carrier billing, really.)

If you fail to login to your account, you need to make sure you verified that account via email. And make sure the password is correct.