Make quiz game Confused About PlayerPrefs and database

Hi all , I’m making a app game of quiz game.(have online system)

But I’m confused to how should I use PlayerPrefs or database.

Like register(but no password) , coin , score , clothes etc .

Which way is much better? or both ?

Can someone give me some point to find out some solution? Thank!

For storing questions, you should use a Json file. For storing scores and all that, if you have 1 player, playerprefs is the way to go. If you have multiple players, a database would be easier.