Android installation

PhoneBlock Mobile App

The PhoneBlock Mobile App is the official app for detecting and blocking SPAM calls directly on your Android smartphone. The app uses Android's built-in call filtering to automatically block SPAM calls before your phone rings.

Functions

Automatic SPAM blocking: Calls from known SPAM numbers are blocked directly
Call history: Overview of blocked and missed calls (only from unknown numbers that are not in your contact list)
Report number: Report SPAM numbers directly from the app
Personal lists: Manage your own blacklist and whitelist
Maximum data protection: For incoming calls, only the SHA-1 hash of the number is transmitted to the server, not the number itself. PhoneBlock therefore does not find out who has called unless it is a known SPAM number.
No contact list access: The app does not need access to your contacts. Numbers from your phone book are never processed by PhoneBlock Mobile.

Installation

Download the PhoneBlock Mobile app from the Google Play Store and open it:

Open in the Play Store

Step 1: Open the app

Open the app and tap "Connect to PhoneBlock"

Step 2: Log in

Step 3: Confirm token

Confirm token creation for the app

Step 4: Request authorization

Tap on "Request authorization"

Step 5: Grant authorization

Activate PhoneBlock Mobile in the Android settings

Step 6: Done!

The app is now active

System requirement: PhoneBlock Mobile requires at least Android 10 (API 29). Call filtering (CallScreeningService) is only available in Android from this version onwards.

What can you do now?

The app is now active and automatically blocks SPAM calls. In the app you can:

Important for those switching from CardDAV synchronization:

If you have previously used the CardDAV method with PeopleSync or DAVx⁵, you must perform the following steps before using PhoneBlock Mobile:

Deactivate the CardDAV synchronization of the PhoneBlock blocklist in PeopleSync/DAVx⁵
Delete the synchronized SPAM contacts from your phone book

Reason: For data protection reasons, PhoneBlock Mobile does not process numbers that are saved in your contact list. If SPAM numbers remain saved as contacts, they cannot be recognized and blocked by the app.

Alternative: SpamBlocker

In addition to the official PhoneBlock Mobile app, you can also use the independent app SpamBlocker and integrate the PhoneBlock database. You can find instructions here: Setup SpamBlocker with PhoneBlock.

Comparison: PhoneBlock Mobile vs. SpamBlocker

Function	PhoneBlock Mobile	SpamBlocker
Availability	Play Store	Alternative stores only
Simplicity of installation	Trivial	For experts only
Block SPAM calls	Yes	Yes
Call history	Yes	Yes
Report SPAM	In the app	About website
Personal lists	Yes, synchronized	Yes, local
Data protection	SHA-1 hash	SHA-1 hash
PhoneBlock Integration	Native	Manually configurable
Other SPAM databases	No	Yes (several)
Advanced filter options	Base	Extensive
SMS filtering	No	Yes
Development	PhoneBlock Team	Independent (aj3423)

Recommendation: If you want a simple, directly integrated solution for PhoneBlock, use PhoneBlock Mobile. If you want to use advanced filter functions, SMS filtering or multiple SPAM databases, SpamBlocker is the better choice.

Note: SpamBlocker is an independent app. Please contact the developer directly if you have any problems.

Alternative: CardDAV synchronization (obsolete)

The previous method using CardDAV synchronization with apps such as PeopleSync or DAVx⁵ is still possible, but no longer recommended. This method only shows SPAM numbers in your contacts, but does not block calls.

Advantages of the CardDAV method:

Also works on older Android versions (before Android 10)
Shows SPAM label in missed calls

Disadvantages:

No automatic blocking
Phone still rings with SPAM calls
Several thousand SPAM entries appear in your address book
Additional app required for CardDAV sync
More complex setup

If you still want to use the CardDAV method, you can find the instructions in the PhoneBlock blog.