While the standard version is offered free, it has many limitations when compared with the Pro version.

  Standard Pro
Commercial use No Yes
Supports JPG Yes Yes
File renaming Yes Yes
Add caption Yes Yes
Supports RAW No Yes
Supports CR2 No Yes
Supports NEF No Yes
Supports TIF No Yes
Supports PNG No Yes
Supports GIF No Yes
Supports DNG No Yes
Filter by camera No Yes
Price in USD Free $19.95