# Shield One: Spam Call Blocker > Block unknown callers offline. Stop neighbor spoofing & spam. No internet needed Canonical page: [https://chrome-stats.com/d/com.indym.shieldone](https://chrome-stats.com/d/com.indym.shieldone) ## Overview - **ID:** `com.indym.shieldone` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** IndyM Software - **Category:** TOOLS - **Downloads:** 137 - **Version:** 1.1.1 - **Last updated:** 2026-07-31 - **First published:** 2026-02-09 - **Publisher country:** IT - **Size:** 2.52 MB - **Data as of:** 2026-09-12 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.indym.shieldone) - **Website:** [https://indymsw.com](https://indymsw.com/) - **Privacy policy:** [https://sites.google.com/view/shield-one/home-page/terms](https://sites.google.com/view/shield-one/home-page/terms) ## Description Shield One: The 100% Offline, Zero-Trust Call Blocker

Tired of "privacy" apps that upload your personal contacts to the cloud, track your data, and charge you monthly fees? Stop trading your digital life just to block spam. Shield One is a military-grade, one-time purchase call screener built for absolute privacy. It is a ruthless scam blocker and robocall blocker designed to instantly block unknown callers.

Zero Internet. Zero Data Mining. Zero Subscriptions.
Shield One is a sealed vault. The app physically lacks the INTERNET permission in its code. Your contacts and call logs never leave your device. If you aren't paying for the product, YOU are the product. Shield One flips that script.

CHOOSE YOUR ARSENAL:

๐Ÿ”’ 1. MAX PRIVACY (Zero-Trust Mode)
Stop neighbor spoofing with our strict whitelist mode. This 'Nuclear Option' automatically blocks unknown phone numbers and locks down your device, allowing ONLY calls from:
โ€ข Your saved Contacts.
โ€ข Trusted Area Codes (e.g., your work prefix).
โ€ข Specific Allowed Countries (Block the world, whitelist specific nations).

๐Ÿ›ก๏ธ 2. SMART FILTER (Targeted Blocking)
Still want to receive some unknown calls? Our Smart Filter acts as a sniper:
โ€ข Spoofing Drop: Instantly rejects scammers trying to fake your local area code before the phone rings.
โ€ข Automated Spam Call Blocker: Drops verified telemarketers flagged by the network.
โ€ข Private ID Block: Instantly hangs up on hidden or anonymous callers.

YOUR NEW SUPERPOWERS:
โ€ข Smart Call Log: A fully offline history of intercepted calls. See exactly which filter caught the spam, export records, or clear history instantly.
โ€ข Emergency Bypass: Safety first. If a blocked number calls twice within 3 minutes, Shield One recognizes the emergency and lets it ring through.
โ€ข Snooze Widget: Expecting a delivery? Pause the shield for 30 minutes directly from your home screen.
โ€ข Battery Friendly: Deep OS-level integration means zero battery drain compared to cloud-pinging apps.

Perfect for users looking to: block unknown callers without internet, stop telemarketers, and secure a privacy call blocker.

Take back your phone. Silence the noise. Keep your data. ## Rankings - #1,860,447 โ€” Overall ## Permissions and access ### Permissions - `android.permission.POST_NOTIFICATIONS` - `android.permission.READ_CONTACTS` - `android.permission.SCHEDULE_EXACT_ALARM` - `com.android.vending.CHECK_LICENSE` - `com.indym.shieldone.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Shield One Lite: Call Blocker](https://chrome-stats.com/d/com.indym.shieldone.lite) โ€” 24 users - [Call Blocker : Indus Shield](https://chrome-stats.com/d/in.indus.indus_shield) โ€” 53 users - [One-Tap Shield: Call Blocker](https://chrome-stats.com/d/com.oneshield.robocallblocker) โ€” 40 users - [Difesa Spam: Call Blocker](https://chrome-stats.com/d/com.codeneir.difesaspam) โ€” 353 users - [Call Trust: Caller ID & Block](https://chrome-stats.com/d/com.block.id.call.trust.caller.id) โ€” 222 users - [Call Blocker](https://chrome-stats.com/d/com.ayman.callblocker) โ€” 1,452 users - [Call Shield - Block Spam Calls](https://chrome-stats.com/d/com.gs.blocco_prefissi_esteri) โ€” 1,094 users - [ShieldCall: Spam Call Blocker](https://chrome-stats.com/d/com.tlsstudio.shieldcall) โ€” 2,914 users, 4.83 / 5 - [CallFence: Spam & Call Blocker](https://chrome-stats.com/d/com.zuihaodestudios.callfence) โ€” 14 users - [ยกWey Ya!](https://chrome-stats.com/d/com.weyya.app) โ€” 46 users - [SpamShield](https://chrome-stats.com/d/com.kabam.nospamkabam) โ€” 226 users - [Call Shield Smart Spam Blocker](https://chrome-stats.com/d/com.timx.callshield) โ€” 399 users, 4.33 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.indym.shieldone)