AFAIK there is no license called the "apache public license". There is the "Apache License, Version 2.0" and the older "Apache License, Version 1.1". I actually searched DDG for "APL license" and came up with something I'd never seen before called the "Adaptive Public License".

Might be an outdated acronym:

https://opensource.org/licenses/apachepl.php (Uses APL)

https://en.wikipedia.org/wiki/Apache_License (Uses AL)

[Ed: Or indeed, just an old misspelling/error that I've repeated here. Anyway - I meant the Apache License v2]