It's safe to download the app. Samsung Electronics MUMD is the creator of SCV31 取扱説明書 that can be found in the Books & Reference category. The overall rating for the tool is 3.3 on Google Play.
The latest update of the app was launched on Apr 12, 2017 and this application was downloaded by over 50K users. Download the free installation package of SCV31 取扱説明書 1.1 and have a look at users' reviews on Droid Informer.