Common questions about Knit.
Knit finds duplicate contacts on your iPhone. To do that, it has to read them.
The comparison runs on this device. Your contacts are not sent to a server.
Knit does not upload your contacts. There is no cloud account, no contact enrichment, and no analytics.
Knit reads your contacts on your iPhone, compares them on your iPhone, and updates your iPhone Contacts when you choose to merge or delete.
Yes. You can undo any merge before you run a new scan.
Your merge history is preserved until a new scan starts. After that, Knit clears the previous undo history.
With limited access, iOS only shows Knit the contacts you explicitly shared. Duplicates involving anyone outside that set will not be found. Knit needs full contacts access to do the job properly.
Settings → Privacy & Security → Contacts → Knit. Revoking takes effect immediately.
iOS has built-in duplicate handling, but it can feel too broad when you want to review decisions one at a time.
Knit shows why each pair was flagged and lets you decide: Merge or Keep separate. Every merge can be undone before you run a new scan.
Some contact apps use cloud enrichment to fill in missing phone numbers, job titles, or emails. That can require sending contact data to a remote service.
Knit does not offer contact enrichment. Knit does not upload your contacts. Your contacts stay on your device.
The algorithm matches contacts by email address, phone number, name, and company. Nicknames and informal names may not be caught automatically.
You can merge any two contacts directly: go to the Contacts tab, tap Select, choose both contacts, and tap Merge. You review the merge before it happens. Undo is available until you run a new scan.
Yes. Tap any contact in the Contacts tab, then use the delete option at the bottom. Knit asks you to confirm before deleting. Deletion is permanent and removes the contact from your iPhone Contacts immediately. There is no undo for delete.
Your iPhone model, iOS version, Knit version, and a short description of what happened.
Do not send screenshots that show private contact information unless you are comfortable sharing them.
Last updated May 2026.