On Google Play, the app has been rated 4.2 by its users. Ads are a part of Unit Converter. The statistics show that this application is popular mostly among Samsung and HTC users.
You can download the .apk setup package of Unit Converter 1.15 free of charge and have a look at users' reviews on Droid Informer. The file size doesn't exceed 7 MB and the app runs flawlessly on Android 4.1 and higher.
As users see it, the app has the following benefits: a user-friendly interface and flawless performance. From the users' point of view, you can notice blinking ads among the drawbacks of this application.