Signing up via Google should NOT manage my contacts
I care about my privacy, and I DO NOT want to share my contact list with another (web) app.
I was about to sign up to Splitwise, then I looked at the required permissions, then I declined.
(as in a side note, the Android app also wants to read my contacts, and that's something I do not like either)
You can always sign up without using google and we won’t get any contact data from you. Unfortunately, with the Android app, you have to ask for any permission you might conceivably want up front and can’t turn things off by request. The contact integration is very useful for most of our users, so we ask for it on Android.
In either case, we do not store your contact information on our server (outside of you specifically inviting a friend to Splitwise), though we do keep an access token saved so that we can load contact information in your browser when you add friends and bills.
Kevin Cannon commented
Tired to log in to Splitwise with Google on Android. I denied contacts permissions, and the App doesn't login.