I used the hell out of Symbian. There were stores and telcos would sell apps too. Games were far better on Symbian because it wasn't a touch screen, it was practically a joystick. We had chat apps and dating apps. I was a thirsty college guy who spent a lot of data on these apps but eventually settled for SMS because data was too expensive. Web experiences sucked; my first job was converting websites to jQuery mobile, which later became obselete thanks to responsive websites.

But you can't build a business like Uber on Symbian. The iPhone brought about all these marketplace apps. They stopped being toys, and became more like mini computers.