I want to share simple standalone executable app - it will read in a file of data, manipulate that data, and write to another file. no interface, no inputs except filename/path. The only requirements are that
1) it has to be usable for others who dont have mathematica.2) it does not reveal the code to users.
-whats the best tool? thanks!
The answer depends on a lot. If you're not familiar with the options I would first recommend using FormFunction: http://www.wolfram.com/language/fast-introduction-for-programmers/cloud-deployment/
There are other more advanced options. But this is really the first one you want to consider. If you want an actual standalone executable, that's significantly more difficult.