It's safe to download the app. Deutsches Medizinrechenzentrum has created myDMRZ Pflege that lies within the Medical tools category. The tool has the overall rating 2.9 on Google Play.
Over 5K users downloaded and installed this application and the most recent release was on Sep 19, 2020. It's free to get the installation package of myDMRZ Pflege, also, you can have a look at users' reviews on Droid Informer. The app runs on Android 4.1 and higher.