有一个跟开发有关的blog，就可以去 http://www.codeandweb.com/request-free-license 申请一个free licenses。
可以申请TexturePacker 或PhysicsEditor 。
如我申请的是TexturePacker ，会收到邮件如下：
Dear XX,
you requested a license for TexturePacker.
Here's your license key for TexturePacker:
XX-XX-XX-XX-XX
Have fun with the license.
We would be happy if you would write blog post about our tools in return.
You can download additional screenshots and information from http://www.codeandweb.com/press-kit
Let us know if you write a tutorial or review - we might link back from our
tutorials page on www.codeandweb.com/texturepacker/tutorials
Kind regards
Andres Loew
...
XX-XX-XX-XX-XX就是free licenses。
TexturePacker下载：https://www.codeandweb.com/texturepacker/download
physicseditor下载：https://www.codeandweb.com/physicseditor/download