Privacy policy

Call Guard blocks unwanted calls on your phone. Everything it does happens on your phone: it has no servers, no accounts, no ads and no analytics, and it doesn’t send any data anywhere.

What Call Guard reads

• Incoming phone numbers. As your phone’s Caller ID & spam app, Call Guard is shown the number of each incoming call so it can decide whether to block it.
• Your contacts. When a call matches one of your blocked patterns, Call Guard checks whether the number is in your contacts, so people you know always get through. It also reads which account the matching contact comes from (for example Google or WhatsApp) to show that in its call list.

What Call Guard stores

• Your patterns and their notes.
• A list of the last 500 calls it screened: the number, the time, what it did and why (for example “contact in Google (matches 602*)”).

Both are kept in the app’s private storage on your phone, which other apps can’t read. Call Guard doesn’t save your contacts: it looks a number up when a call comes in and keeps only the result shown in the call list.

What Call Guard shares

Nothing. Call Guard doesn’t request internet access, so it can’t send your contacts, patterns or call history to anyone, including the developer. The place names it shows (such as “Arizona”) come from data built into the app.

If Android’s backup to your Google account is turned on, your patterns and call list may be included in that backup, as with other apps’ data. That backup is handled by Android and Google under your Google account’s settings, not by Call Guard.

Deleting your data

Clear log on the Calls tab deletes the call list, and Remove deletes a pattern. Uninstalling Call Guard deletes everything it stored.

Children

Call Guard isn’t directed at children and doesn’t knowingly collect information from anyone.

Changes and contact

Changes to this policy are published on this page. The app’s complete source code is on GitHub. For questions, open an issue there.

Last updated: November 13, 2026.