ZeroDialer: Phone & Call Block

ZeroDialer brings your phone calls, contacts, and custom blocking rules together in one seamless app. Set it as your default phone application and take full control over which calls reach you.

ZeroDialer stands for zero telemetry: a phone dialer designed without user tracking, third-party analytics, or background data collection. Manage your calls, organize your contacts, and block unwanted numbers with rules processed entirely on your device.

TAILORED CALL BLOCKING
• Add numbers to your custom blocklist or allowlist.
• Filter out calls from numbers not saved in your contacts.
• Set up filters for private or hidden numbers, invalid formats, and out-of-region calls.
• Restrict unknown calls based on your specific area code or region.
• Review a detailed log of blocked calls along with the exact rule that stopped them.

YOUR CALLS & CONTACTS
Dial numbers, browse your recent call history, and manage your address book effortlessly. Organize contacts into custom groups, mark favorites, and designate priority contacts for your blocking exceptions.

RULES BUILT FOR YOUR ROUTINE
Create schedule-based profiles and apply rules to silence or block calls from specific groups. You can also activate a strict Do Not Disturb mode with exceptions for favorites and priority contacts.

CUSTOMIZE YOUR EXPERIENCE
Choose between clean light and dark themes, with high-contrast options and an intuitive interface. Easily export and import your contacts, settings, and blocking rules using local backup files.

100% LOCAL PROCESSING
The blocking engine enforces all rules locally on your device without needing to query an online spam database or upload your data. ZeroDialer does not require creating an account or signing in.

REQUIREMENTS
Compatible with Android 10 or later. To manage and screen calls, you must set ZeroDialer as your default phone app and grant the standard permissions for Phone, Contacts, and Call Log.

Note: Call blocking relies on your configured rules and the caller ID information provided by your network. ZeroDialer does not verify the physical identity of callers.