How Allociao blocks calls
No magic: a call filter built into Android + a database of known unwanted-number ranges and community reports. Here's the detail.
1. Allociao becomes your call filter
Android has a special role, the "call-screening app", that only one app can hold at a time. When you turn Allociao on, you hand it that role: for every incoming call, the system asks for its verdict before your phone rings. No access to your call log, no listening in: Allociao just receives the number long enough to decide.
2. Each number is checked against official ranges and reports
Allociao draws on official number ranges from the national numbering plan — the premium-rate ranges and the VoIP operator ranges often used for spam — together with community reports. Allociao ships this data straight inside the app. The check happens on your phone, with no connection: if the number matches, the call is hung up.
3. You get the final say
A legitimate number classified wrong? You can allow it in one tap, and it'll always come through afterwards. Conversely, you can manually block a number that bothers you, and report it to the community. Your contacts are never filtered.
What about my privacy?
Allociao works with no account and no ads. Filtering is local. The numbers you choose to report are sent anonymously (a random identifier, never your number). We say more on the privacy page.