Phone Call Blocker - Blacklist app analytics for March 21

Call blocker for spam blocking of calls. Spam blocking: * Spam blocking for calls by adding phone numbers to the blacklist. * Block everyone except contacts. * Block phone numbers by using area code. * Block private numbers. * Whitelist for phone numbers that should never be blocked. * Calls blocking log. * Quick search for blocked calls and phone numbers in the blacklist. * Ability to turn call blocking on or off.