RVG-Rechner is an Android app developed by Rechtsanwälte König Dey that allows users to calculate legal fees according to the German Attorney Remuneration Act (RVG). This app is useful for anyone who wants to know the potential costs of a legal dispute. The app calculates both out-of-court and court fees for the first instance, as well as court costs and the risk of the legal process. In addition, there is a paid version of the app called "RVG-Rechner Plus" that includes features such as legal aid, second instance, revision, variable business fees, variable settlement fees, variable dispute value for all instances, multiple clients, export functions, and more. The paid version also includes a calculator for fines and administrative offenses, a separate court cost calculator, a calculator for criminal cases, a travel cost calculator, and an interest rate calculator (base rate).

The interface of RVG-Rechner is user-friendly and easy to navigate. The app is available for free on the Google Play Store. However, the paid version of the app offers more advanced features and is available for purchase on the same platform. Overall, RVG-Rechner is a helpful tool for anyone who wants to know the potential costs of a legal dispute under the German legal system.