What about the obligation to not put people at risk of death through ignorance? If the app itself is used as a suppression too that was not previously available and one can accidentally expose someone to literal death, then yes the app has an obligation to not do that as human beings. Pretty sure not exposing people to harm is an implicit agreement with their users. Maybe I'm wrong and Indians (where the software is made) don't think like most of the rest of human society, but I'm pretty sure they do and don't want people they converse with being put on government watch lists for simply being entered into a database without their consent or knowledge.