Mutuals lives inside iMessage. Add it to any conversation and instantly see every contact you both share.
Download Mutuals and sync your address book once. We hash every number on your device — names and digits never leave your phone.
Open any conversation, tap the Mutuals icon in the app drawer, and send a connection request.
Once the other person accepts, you both instantly see every contact you have in common — and nothing else.
Our servers only store cryptographic hashes. We compute the overlap and discard both lists. No names, no numbers, no browsing.
We only work if you sync your full address book — selective sync breaks mutual matching for everyone. Read our privacy policy to see exactly what we store.