Data, safety & subscriptionApp slow ho to kya kare?EnglishहिंदीHinglishShort answerUnused apps close karein, storage free rakhein, app restart karein aur backup rakhein.Related questionsOlo Book ka data kaha store hota hai?→Data backup restore kaise kare?→New phone me Olo Book data kaise laaye?→App update ke baad data delete hoga kya?→