Hi, I'm John, and I can answer this one! Tinrocket is my company—I like computers, dogs, and taking photos and video with my iPhone, so the short answer is: To make better dog videos, of course!
I post many videos of my dog, @MissMuddypenny, on Instagram and didn't want people to miss all of the funny things she does. I try posting short videos, but sometimes you have to post a minute-long video. 😅 I was afraid people would not stick and watch the whole video if nothing interest happened right away. It's possible to edit videos the way Start Here does with many other apps, but Start Here streamlines the process.