How to Use Apache 2.0 License in Commercial Products, Explained in Simple Terms

If you were wondering whether you can use  apache licensed code in your commercial applications and what do you need to do in order to comply with the license here's the unofficial simple ans short answer.

You can use Apache 2.0 licensed source code in your project as long as you include the copy of the license in your distribution and provide attribution in an applicable way in your distribution.

The slightly lengthier and detailed (but still very simple explanation) is below, taken from Apache license FAQ

Describing legal documents in non-legalese is fraught with potential for misinterpretation. Notwithstanding the text that follows, the actual text of the license itself is legally binding and authoritative.

That said, here's what the Apache license says in layman's terms:

It allows you to:

• freely download and use Apache software, in whole or in part, for personal, company internal, or commercial purposes;
• use Apache software in packages or distributions that you create.

It forbids you to:

• redistribute any piece of Apache-originated software without proper attribution;
• use any marks owned by The Apache Software Foundation in any way that might state or imply that the Foundation endorses your distribution;
• use any marks owned by The Apache Software Foundation in any way that might state or imply that you created the Apache software in question.

It requires you to:

• include a copy of the license in any redistribution you may make that includes Apache software;
• provide clear attribution to The Apache Software Foundation for any distributions that include Apache software.

It does not require you to:

• include the source of the Apache software itself, or of any modifications you may have made to it, in any redistribution you may assemble that includes it;
• submit changes that you make to the software back to the Apache Software Foundation (though such feedback is encouraged).