# Silence: Spam & Prefix Blocker > Block spam, prefixes & unknown calls. 100% Safe & Private. Regain your peace. Canonical page: [https://chrome-stats.com/d/com.diagonalley.silence](https://chrome-stats.com/d/com.diagonalley.silence) ## Overview - **ID:** `com.diagonalley.silence` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Diagon Alley - **Category:** TOOLS - **Downloads:** 62 - **Version:** 1.0.1 - **Last updated:** 2026-04-03 - **First published:** 2026-04-03 - **Publisher country:** VN - **Size:** 46 MB - **Data as of:** 2026-09-10 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.diagonalley.silence) - **Website:** [https://silence-protect.firebaseapp.com](https://silence-protect.firebaseapp.com/) - **Privacy policy:** [https://sites.google.com/view/silence-app-privacy](https://sites.google.com/view/silence-app-privacy) ## Description Tired of constant interruptions from telesales, robocalls, and scammers? Silence is your ultimate shield against unwanted calls. Designed with a philosophy of "Privacy First", Silence helps you reclaim your peace of mind without compromising your personal data.

Unlike other caller ID apps, Silence works 100% Offline. We process everything locally on your device—your contacts and call logs never touch our servers.

🛡️ KEY FEATURES:

🚫 Advanced Prefix Blocking (Wildcards) The most powerful tool to stop spam rings. Easily block entire ranges of numbers by entering their starting digits.

👤 "Contacts Only" Mode Need absolute focus? Activate the "Contacts Only" shield to instantly block everyone not in your address book. Perfect for meetings, sleep, or "Me Time."

🕵️ Block Private & Hidden Numbers Automatically reject calls from "Unknown" or "No Caller ID" sources. Scammers often hide their numbers—Silence stops them before your phone even rings.

📝 Smart Rules Engine

Custom Blacklist: Block specific numbers or patterns.

Safety Whitelist: Ensure important calls (family, work) always get through, regardless of your blocking rules.

🔒 Unmatched Privacy & Security

Offline-First: No internet required for blocking logic.

No Data Uploads: We do NOT upload or sell your contact list.

Biometric Lock: Secure your blocking history and settings with Fingerprint or Face ID.

✨ Modern & Lightweight

Stunning K-Style Dark Mode interface.

Battery-friendly and lightweight.

No annoying notifications for blocked calls (customizable).

HOW IT WORKS:

Grant the "Call Screening" permission.

Open the "Rules" tab and toggle on the shields you need.

Add custom prefixes (e.g., 1900*) to block specific spam waves.

Enjoy the silence.

Download Silence today and take back control of your phone!

Questions or feedback? Contact our support team via the Settings menu. ## Rankings - #2,164,449 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_ADSERVICES_AD_ID` - `android.permission.ACCESS_ADSERVICES_ATTRIBUTION` - `android.permission.ACCESS_ADSERVICES_TOPICS` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.FOREGROUND_SERVICE` - `android.permission.INTERNET` - `android.permission.POST_NOTIFICATIONS` - `android.permission.READ_CONTACTS` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.USE_BIOMETRIC` - `android.permission.USE_FINGERPRINT` - `android.permission.WAKE_LOCK` - `com.android.vending.BILLING` - `com.android.vending.CHECK_LICENSE` - `com.diagonalley.silence.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` - `com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE` - `com.google.android.gms.permission.AD_ID` - `com.google.android.providers.gsf.permission.READ_GSERVICES` ## Similar extensions and apps - [Spam Blocker: Call & SMS](https://chrome-stats.com/d/com.pitech.spamblocker) — 79 users - [Call Blocker](https://chrome-stats.com/d/com.ayman.callblocker) — 1,415 users - [GuardCall: Bloqueador de Spam](https://chrome-stats.com/d/com.gustavo133.bloqueadordechamadas) — 109 users - [Anti Spam Call](https://chrome-stats.com/d/com.privacy.antispamcall) — 12 users - [No Caller–Reject/Silence Call](https://chrome-stats.com/d/ghb.app.nocaller) — 17 users - [Block unknown Callers – Spam](https://chrome-stats.com/d/com.blockunknow.spamprotector) — 2,789 users, 3.00 / 5 - [Block-Spam: Call Blocker](https://chrome-stats.com/d/pamiesolutions.blacklistcall) — 1,099,120 users, 4.27 / 5 - [Anti Spam](https://chrome-stats.com/d/com.antispam.app) — 13 users - [Block Unknown Callers](https://chrome-stats.com/d/com.lifesoftwarelab.android.incomingcallcontrol) — 567,283 users, 4.56 / 5 - [CallBlockery - Block Spam](https://chrome-stats.com/d/com.callblockery.calls) — 35 users - [Call Blocker - Robocall & Spam](https://chrome-stats.com/d/com.gingkolab.callblocker) — 17,616 users, 4.07 / 5 - [Blocker: Spam Call & SMS ID](https://chrome-stats.com/d/com.smartblock.spamcall.blocker.pro) — 34,225 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.diagonalley.silence)