The most recent update of the tool was released on Aug 4, 2019 and Media Server has been installed by over 1M users. This application shows advertisements. The statistics demonstrate that the app is popular mostly among Samsung and HTC users.
A free .apk installation package of Media Server 7.4 can be downloaded from Droid Informer and you can read users' reviews on this site. Prepare 5 MB of free space on your device for this app setup package and take into account that it requires Android 5.0 and higher.
As users state, you can find such a drawback of the app as server errors.