Rijksoverheid is the creator of SZW cijfers that is related to the Books & Reference category. The most recent update was on Mar 24, 2015 and the tool was downloaded and installed by over 1K users. The overall score for this application is 3.1 on Google Play.
It's free to get the installation package of SZW cijfers, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 2.3.3 and above. The download of the app doesn't contain viruses or any kind of malware.