How to Merge Duplicate Contacts on iPhone

Steps

1. Open CleanMaster and go to contacts cleanup.
2. Let it scan for duplicate and incomplete contacts locally.
3. Review the matched pairs it surfaces.
4. Merge the duplicates you confirm.
5. Fill in any incomplete entries it flagged.

Why it works this way

Duplicate contacts creep in from syncs, imports, and shared cards, leaving you with three “Mom” entries and half-filled records. CleanMaster spots the matches and lets you merge them deliberately, and — crucially for something as sensitive as your address book — it does every bit of matching on-device, so your contacts never leave your phone.

Tips & edge cases

• Review before merging — confirm two entries really are the same person.
• Incomplete-entry flags are a good prompt to add missing numbers or emails.
• Nothing is uploaded, which matters most for contact data.

FAQ

Does it merge contacts automatically without asking? It finds and highlights duplicates for you to merge; you stay in control of what gets combined.

Can it flag incomplete contacts? Yes. It highlights incomplete entries so you can fill in what’s missing.

Are my contacts uploaded to find matches? No. All matching happens locally on your device — nothing is ever uploaded.