You can get the installation package of DigiTaal 1.6 for free and have a look at users' reviews on Droid Informer. The app requires Android 2.0 and higher. The download of this application doesn't contain viruses or any kind of malware. E de Smidt is the developer of DigiTaal which can be found in the Communication category.
The app was downloaded and installed by over 5K users and its most recent stable release was on Jul 1, 2013. Users rated this application 3.7 on Google Play.