There's a lot of discussion here, but I don't see the important question being asked: How (and whether) the removal of this app will help the women in Saudi Arabia: 1)In the short term 2)In the long term I.e. if the alternative to using the tracking app is not being able to travel (in the realities of that horrible state), then removal will make life of many women worse in the short term. Calls for bans and removals…
You don't help bad people do bad things. Period. End of discussion.
If they still do it without your help, that's unfortunate; and yes, you should probably do something to stop it. But if they do it with your help, then you are directly responsible for it, and the rest of us have a moral obligation to hold you responsible.