Vertex - Merge Contacts

Looking for a fast, private duplicate-contact cleaner? Vertex finds and merges duplicate contacts, cleans up your address book, and does it all without an account or cloud sync.

With on-device AI, Vertex catches duplicates that basic "exact match" cleaners miss — similar names, nicknames, and shared organizations — not just identical phone numbers.

━━━ KEY FEATURES ━━━

🔍 Smart Duplicate Finder
• Detect exact duplicates by phone number, email, or name
• Catch fuzzy duplicates too (e.g. "Jon" vs. "John", "Bob" vs. "Robert")
• Spot contacts missing a phone number, name, or email

⚡ Smart Merge & Preview
• Review every duplicate side-by-side before merging
• Smart Merge combines the best details automatically; Manual Merge lets you pick field-by-field
• Preserve custom labels, phone types, and addresses

🛡️ 1-Tap Undo & Backups
• Every merge is backed up automatically
• Undo any merge, anytime, from Backup & History
• Export your contacts as VCF or CSV whenever you like

📊 Contact Health Score
• A 0–100 completeness score for your whole address book
• Smart suggestions for exactly which contacts need a phone number or email added

🕸️ Relationship Graph
• Visualize how your contacts connect — by organization, family name, phone, or email domain

🔒 Private By Design
• Duplicate detection and merging run 100% on your device
• No account, no sign-in, no cloud sync of your contacts — ever

Vertex is free to use and supported by ads. See our Privacy Policy for exactly what that involves — your contacts themselves are never part of it.

Clean up your phonebook today — download Vertex and take back control of your contact list.