KALKAN: SMS & Call Blocker

On-device protection from spam and scams. KALKAN checks incoming messages on your phone and holds suspicious ones in quarantine, so they never mix into your inbox. Your messages stay on your device. KALKAN never sends message content to any server — filtering runs entirely on your phone. KALKAN WORKS AS YOUR DEFAULT SMS APP Android requires an app to be the default SMS app in order to quarantine a message before it reaches your inbox. That is why KALKAN is a full messaging app: it shows your conversations, sends messages, and receives and sends multimedia messages. You can remove the role at any time, and KALKAN stops all message access immediately. WHAT IT DOES • Quarantines spam and scam messages so they never mix into your inbox • Screens incoming calls against your own block list and KALKAN's verified list • Block a caller with one tap: under Activity › Calls, or from the notification after an unknown number calls • Community list: numbers reported as spam by at least three KALKAN Pro users are blocked before they ring • Lets you check a suspicious message, link or number by hand • Explains in plain language why it flagged something • One tap to restore a message that was filtered by mistake • Your own allow and block lists BLOCKING AND SPAM-LIST CRITERIA KALKAN keeps two separate lists. 1. Your own block list — only numbers you block yourself (by hand, or with one tap under Activity › Calls or from the call notification). KALKAN never adds a number here for you. 2. KALKAN's verified list — only numbers that meet a documented criterion: published by a regulator or law-enforcement body, listed on a carrier's fraud list, received by KALKAN's own verified trap line, or reported as spam in the last 90 days by at least three different KALKAN Pro users with a verified purchase. If "Not spam" reports exceed half of the spam reports, the number leaves the list. One report or one suspicious message is never enough on its own. Message analysis is separate: a message can be flagged as risky without its sender being added to any list. PRIVACY • KALKAN never sends message content to any server • Your contacts are not accessed • Message content, contacts and the numbers you check are never shared with advertisers • Quarantined messages stay in your phone's message storage, so uninstalling KALKAN does not delete them • If your phone backs up text messages, quarantined messages may be included like your other messages Internet is used to download threat-database updates, for the KALKAN Pro subscription, for optional sign-in with Google or Apple, for usage measurement with a random installation ID, to show ads from Google AdMob (not with KALKAN Pro), for a single notification when a new version is available, and for community reports: when they are on (the default; Settings › Community reports turns them off), a number you block is sent without your identity. Message content, contacts and links are never sent. PRICING Spam and scam filtering, call protection and the Check tools work with KALKAN Pro, a yearly auto-renewing subscription. The price is shown before you buy; there is no free trial. Manage or cancel the subscription at any time in Google Play › Payments & subscriptions. If you bought KALKAN when it was a paid app, KALKAN Pro is unlocked for you for life. Without KALKAN Pro the app shows ads; KALKAN Pro removes them all. Terms of Use: https://samettrm.github.io/kalkan/terms/ Privacy: https://samettrm.github.io/kalkan/privacy/ BUSATER YAZILIM A.Ş. Support: [email protected]

• General improvements and a smoother experience. • Bug fixes.