Basic. Good start. Lacking some essentials.
This is a good app for practice but is lacking some basic tools that would make it less clunky and make it a bit more worth the $5.
The rigs are well constructed and perform very smooth. However, parts of the rig do not stay selected when you rotate the view. You end up having to select, transform or rotate the part of the rig, then re-select the part if you move the viewport. This adds time to creating your sequence. It would also be extremely helpful to have preset views such as Left, Right, Top, etc.
As for the rigs, there are no constraint handles for rotations and transforms. Being able constrain transforms for fine tuning poses on a fixed axis is an almost essential tool that is missing from this application. Having control handles for smaller parts of the rig would be extremely helpful for animating. It is too easy to grab the wrong part of the rig and adjust it and then have to undo and try again. It wastes a lot of time.
When animating there is no interpolation between frames. Let's say if you do a pose on frame 1, and another pose on frame 8, the rig stays motionless on the in between frames. What this means is every frame becomes a key frame. This is a major drawback.
Export options are Limited. Basically the options for exporting your animations are dependent if you have an Facebook, YouTube or Twitter account. No other options like exporting locally directly to your device.
Also, when saving your animations, there does not seem to be a way to delete ones you longer want.
$5 seems a bit steep for an application that lacks some basic tools and functionality. Still the limited tools it does have function well.