Strong privacy with 100% on-device processing and no data uploads
Comprehensive protection features (spam, robocall, neighbor spoofing)
Highly customizable controls (blocklists, area codes, whitelist)
Free tier with ads and a 14-day Premium trial for an ad-free experience
Free tier includes ads (as recently updated)
Call blocking effectiveness may depend on carrier and device specifics
Switching to a default SMS/Phone app involves system permissions and setup requirements
About Block Guard: Spam Call Blocker
Block Guard: Spam Call Blocker is a communication app developed by RadStorm Technologies.
Download Statistics
Block Guard: Spam Call Blocker has been downloaded 540 times. In the last 30 days, the app was downloaded 100 times.
User Ratings
Block Guard: Spam Call Blocker is rated 4.00 out of 5 stars. The rating is based on 46 ratings.
App Information
Block Guard: Spam Call Blocker is FREE to download. The APK download size is 16.62 MB. The latest version available is 3.1. The last update was on August 19, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play June 2025.
Description
Upgrade your mobile experience with Block Guard, the secure Default SMS and Phone app designed to keep your inbox clean and your day uninterrupted.
Block Guard replaces your standard messaging app to provide a unified, private, and spam-free communication hub. Send texts, share photos via MMS, and manage your calls—all while our local protection engine filters out the noise in the background.
KEY FEATURES:
π¬ Your New Default SMS App Make Block Guard your primary messaging app for a cleaner experience.
Full Messaging Support: Send and receive SMS and MMS messages seamlessly.
Media Sharing: Share photos and attachments with friends and family just like you always have.
Clean Inbox: Your conversations are organized efficiently, keeping personal chats separate from blocked spam.
Local Privacy: Unlike cloud-based alternatives, your message history remains stored locally on your device.
π‘οΈ Intelligent Spam Protection Block Guard uses advanced local detection to stop scams before they disturb you.
Neighbor Spoofing Defense: Automatically detects and blocks scammers who mimic your local area code to trick you into answering.
Text Blocking: Filter out phishing attempts and junk SMS messages automatically.
Robocall Shield: Identify and reject known spam numbers using our offline spam repository.
β Total Control Over Your Phone Customize your protection with powerful, easy-to-use tools.
Custom Blocklists: Add specific numbers to your personal blocklist to stop harassment permanently.
Area Code Blocking: Block entire area codes to stop waves of spam from specific regions.
Whitelist Support: Ensure important calls from family, work, or doctors always get through by adding them to your Allowed Contacts list.
Call Handling Notice: Block Guard includes features that can answer and hang up on certain blocked calls when supported, but this behavior cannot be guaranteed and is carrier dependent. Whether a blocked call is fully stopped before voicemail may vary based on your carrier, device, Android version, and system behavior. Android CallScreeningService is required for Block Guard to block calls.
π Privacy-First Architecture We believe your data belongs to you.
100% Local Processing: All spam blocking and number analysis happens directly on your phone.
No Data Uploads: We do not upload your contact lists, call logs, or message history to external servers.
Secure & Private: Enjoy peace of mind knowing your communications are safe from third-party tracking.
Manage your communications with confidence using Block Guard—the SMS app that protects you.
Permissions Notice: Block Guard requires "Default SMS Handler" and "Default Phone Handler" permissions. These are necessary to send/receive messages and manage calls directly, allowing the app to filter spam effectively before it reaches your notifications.
Recent changes: • Blocked texts now show the full message. You can move one back to your inbox or allow the sender. • Fixed call history not loading. • Fixed contacts showing an empty list instead of asking permission. • Allowed numbers are no longer blocked from texting you. • Picture messages no longer create duplicate group chats. • Clearer confirmations before you block or allow a number.
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Comments on Block Guard: Spam Call Blocker for Android
β β β β βHomer SimpsonΒ· Apr 1, 2026
Works well I'm impressed but 2 things there's no zero on dialer, and I'd like a notification dot on icon if I miss a call
β β β β βRick RoemerΒ· Aug 29, 2026
This works really well. Blocked a complete area code that spams every day. A couple get through occasionally but not a big deal. Blocks many others spam calls too. Thanks!
β β β β β Josh GorderΒ· May 1, 2026
Absolutely love that I can allow the calls to voicemail but automatically stop the call from ringing or buzzing me, I love wasting the scammers time letting it ring and leaving a voicemail
β β β β β Frank SalamoneΒ· May 10, 2026
You have one of the best and most comprehensive phone call blocking apps that ive seen, and I have tried may. I like that there are many different options to block and whitelist calls. The app has blocked all my spam calls. My support ticket was answered and fixed that same day
β β βββFrankieΒ· Apr 8, 2026
All I want is an app that doesn't allow spam to go to my voicemail. It has to be a high demand consumer product and yet no one seems to have made one. This one looked promising as it has an option where it SAYS the blocked number goes to a dial tone and not to VM. But I'm still getting a couple dozen spam calls every single week and have to delete them. I like that this one allows you to block area codes. But the AI bots just find a new one to use so .... pointless. I DID MAKE IT DEFAULT
β ββββDaveΒ· Apr 24, 2026
I got this to filter text message spam, but it will not let me see messages without enabling the AI call screening role.
β ββββM JohnsonΒ· Jun 20, 2026
Paid for the app & it's not working & customer service did respond to me but problem wasn't solved, but they refunded my purchase but I caution that if u do contact customer service if u don't respond in the timely manner they want they will lose patience with u& refund & uninstall the app from your phone, but they will respond and try to help fix the matter app worked great until the update but my 1 star still applies update: customer service has been sending horrible and harassing emails to me
β ββββRyan BΒ· Aug 7, 2026
Has potential but slow and buggy on s25. Synced messages and all just remained in one place (including those already identified as spam by Google's messages). Group messages were separated. Still looking for a product that exceeds Google's own Messages app....
Google Play Rankings for Block Guard: Spam Call Blocker
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Technologies used by Block Guard: Spam Call Blocker
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