Dynamic DNS Update has the overall rating 4.3 on Google Play. There are advertisements in this application. Samsung and Motorola users highly appreciate the app.
A free .apk installation package of Dynamic DNS Update 3.1 is available from Droid Informer and you can read users' reviews on this site. Prepare 745 KB of free space on your device for this app setup package and keep in mind that it works fine on Android 2.1 and higher.
Based on the users’ comments, you can notice high CPU usage among the disadvantages of the app.