Easy Contacts Backup

One-tap/automatic backup, restore with duplicate-skipping, View Contacts inside a backup, AES-256-GCM encryption (and how to turn it off for portability), CSV/VCF export, Find Duplicates, Contact Health Check, Storage Manager + retention control, PIN/biometric app lock, and closes with the privacy commitment. Full text is in the file — too long to duplicate cleanly here, but every feature claim maps to something actually built in the app, nothing aspirational.