Would get the pro... but the free one works as well. – Stick Nodes - Animator Review

I downloaded this app and immediately realized that the pro version was better... but you have to pay for it... so I just sucked it up and used this. This app is fine without the pro... and if you don’t want to pay, then I REALLY recommend this app for simple yet useful animation and animation “tools.” Right now I am working on an animation, and so far, everything is going well! It hasn’t crashed yet, but it does have a tendency to (whenever I check the time or adjust the volume or brightness) tunt the screen black or freeze for a bit. 9/10 or 4.5/5 stars...
Review by Erik Neilson on Stick Nodes - Animator.