This is SIM-Blocker

Block annoying and unwanted phone calls

Automatically Block Unwanted Calls, Block Numbers
Make your Personal Call Blacklist

View More clean web design

View more

We are always working hard to


Usability with clean design

Search Engine Ready

Responsive design

Lifetime Support & Automatic Updates



 What is

Howdy, I’m Aaron. I’m responsible for just about every thing on this site. I created this portal in 2015 to present my work during the last years. is a completely free and non commercial platform of android applications and web portals I’ve made.

Currently, most of my free time, I’m developing Android Applications like SIM-Blocker in Android Studio using the last Android-SDK and following the Google Material Design Guidelines.

On the other side I like developing Web-Applications and Web-Portals. My expertise and interest lies in web back-end technologies. Here I use PHP, MySQL (mostly in combination with WordPress), OracleDB and Python. My front-end side skills revolve around HTML/5, CSS/3, JS (as well as frameworks like jQuery (UI), AngularJS).

Get in touch!

Do you have a great idea or want to support us? Maybe you want to translate our applications in a new language or have some great images/icons prepared for us? Do you have an idea for a new feature? Maybe you found a secret software bug (Hey! It compiles! Lets ship it!). Just tell us and we’ll help you resolve your issues quickly and easily, getting you back to more important things.

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