If I could only access one social media app I would choose Twitter. I like Twitter because you can post pictures, memes,thoughts, feelings, jokes, news etc. and share them with your peers. Most of my friends on there are my age so I relate to the post on my timeline more than other sites. Its the most non judgmental social media site in my opinion, and people tend to be more honest. I don't feel pressured to post "the perfect picture", or post at all actually. I just like to read about whats going on and go about my business. Twitter is by far my favorite social media app, and if it came down to choosing one I'd choose it in a heartbeat.