Doesn't work – Slo-Square - Slow Motion For Instagram and Vine Review

I can't get the slow motion to work. Cant get my video to full screen. Paid the .99 to remove the watermark and I guess I wasted my money! You should really care about your customers and fix the app! On top of that the buttons don't even work! ?
Review by MarshEmpty on Slo-Square - Slow Motion For Instagram and Vine.