I have over 250. I like to download lots of different apps that offer the similar features and compare them. Or if I see one on the news or otherwise advertised, I’ll download and give it a try.
I only actively use about 20 apps… . Skype, Facebook, Google Sheets, Alexa (and the other apps for my smart devices), Mail, Music, Messaging, Xfinity apps, Safari, Amazon, Ebay, workout apps like Interval Timer, Fitbit, 8fit, and Achievement, other productivity apps like Centriq and LastPass and Centriq.
Its interesting to take a moment and assess what I’m actually using.
I just recently discovered the relatively new feature on iOS11 under Settings > General > iPhone storage where you can review which apps are installed, and when they were last used. You can delete apps from this screen now. I’m not sure how long this feature has been available, but I’ve been waiting for it for years.