It can't remove the system libraries, but it can decide not to use them. Yes, this means if you were to open it with any app that isn't protected then you will still be vulnerable, but within the app you're safe.
Instagram has an unorganized collection of fitness videos (among other things). This platform is exclusively for exercise videos and targeted for genuine fitness enthusiasts.
What's interesting is that there is a lot of quality fitness content on instagram, but it's difficult to find amidst the sea of butt shots, cats, meal plans, etc. We've created a unique categorization system that allows users to find exactly what they are looking for. Our upvote/downvote system will ensure that only quality content will be pushed to the top.
Where there is good quality content, users of all skill levels will follow. It's a great tool especially for beginners to expand their workout routine. I'd love to get your feedback on the app.
The app has been in testing for a few months now, and in that time it accumulated over 20k members in the G+ tester community. Today, it's finally being released for the masses :)
Side note, I'm publishing an update in a couple hours to fix some of the crashes that have been showing up in this update