Small application to quickly convert difficulty grades for rock climbing, lead and bouldering scales supported. Lead: French, YDS, UIAA, British Tech, British Adjectival. Boulder: Fontainebleu, Hueco, B Grade. Example application to demostrate KDE's Kirigami Qt-based framework for building cross-platform applications.
It's secure to download the app. KDE Community is the developer of Klimbgrades which can be found in the Sports category. The tool has been downloaded and set up by over 0,5K users and the latest release is dated Mar 16, 2017.
The average user rating of this application is 4.9. It's free of charge to get the installation package of Klimbgrades, also, you can have a look at users' reviews on Droid Informer. The app works fine on Android 4.1 and above.