Purplus offers the Anime Studio Pro 9 for Windows and Mac for $89.95. Coupon code "ANI50" cuts it to $39.95. With free shipping, that's $19 under our mention from Black Friday week and the lowest total price we've seen for this software. (It's also a current price low by $94.) It features a Bone Rigging system to alleviate tedious frame-by-frame animation, animation timeline, Physics Engine, and Auto Trace.