CallDam
Mass prefix call blocker
Only for iPhone
Free
iPhone
Block unwanted calls by prefix, protect up to 1.8M numbers, and add rules directly from the iPhone share sheet. Private, local, no tracking.
CallDam is built for mass call blocking by phone-number prefix.
Instead of blocking one unwanted number at a time, CallDam lets you create prefix rules that can protect thousands of related numbers at once. The app is designed for large blocking lists, with support for up to 1.8 million active protected numbers.
A key feature is direct blocking from the iPhone share flow. When you see an unwanted number or contact, share it to CallDam and create a prefix blocking rule without manually opening the app and rebuilding the rule step by step.
Main features:
• Block unwanted calls by phone-number prefix
• Protect large ranges of related numbers
• Support for up to 1.8 million active protected numbers
• Add exact-number exceptions for numbers you still want to allow
• Pause, resume, edit, or delete rules
• Batch-edit multiple rules before applying changes
• Add rules directly from the iPhone share sheet
• Import and export local JSON backups
• Apply your active block list through iOS Call Blocking & Identification
Private by design:
• No account required
• No ads
• No subscriptions
• No in-app purchases
• No tracking
• No contact access required
• No blocked-number uploads
• Your blocking rules stay on your device
CallDam prepares your active blocking list locally and applies it through Apple’s iOS Call Blocking & Identification system.
Supported prefix-blocking countries and regions:
Russia / Kazakhstan (+7), USA / Canada (+1), Armenia (+374), Belarus (+375), Ukraine (+380), Tajikistan (+992), Azerbaijan (+994), Georgia (+995), Kyrgyzstan (+996), Uzbekistan (+998), France (+33), Spain (+34), Poland (+48), Denmark (+45), Norway (+47), Netherlands (+31), Switzerland (+41), India (+91), Iran (+98), Australia (+61), Singapore (+65), Turkey (+90), South Africa (+27), UAE (+971), Saudi Arabia (+966), and Egypt (+20).
Important:
To block calls, you must enable CallDam manually in iOS Settings:
Settings > Apps > Phone > Call Blocking & Identification.
CallDam does not collect, upload, sell, or share your blocked numbers.
Ratings & Reviews
The developer, Valentina Prossapchuk, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Valentina Prossapchuk
- Size
- 9.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later.
- iPhone
- Languages
- English and Russian
- Age Rating
4+
- 4+
- Copyright
- © 2026 Valentina Prossapchuk
