Taking down "blasphemous" content is immoral. More generally, allowing religiously-based morals to restrict the freedoms of those who aren't willing participants is immoral.

Building and distributing or in any way being involved in the technology to track women in SA makes you directly responsible for the abuse that happens as a result.

Technology companies have a responsibility that comes with the power they enable, true it is very difficult to exercise properly, but in some cases it is very clear what is right and wrong.