its different database, user from dream dance online can't login to dream dance OLDream Dance OL - Apps on Google Play
Dream Dance Online - The rhythm social game that will give you the perfect gaming experience! Features - Game Mode: 4-Key Mode: Touch, hold and slide to the rhythm with perfect beat timing; Bubble Mode: Modern mode by tapping the bubble; AU Mode: Traditional mode that is using arrows with a...play.google.com
Update