StackSocial offers downloads of The Mac Productivity Bundle 5.0 for Mac for $39.99. That's $415 off and the lowest price we could find for this bundle. (For further comparison, we saw a similar bundle of nine Mac apps for $50 in May.) It includes 15 Mac apps, including Data Recovery Guru, MacSnapper, Live Interior 3D, Mariner White, HDR Darkroom 2, and more. Deal ends October 1.