AlvCalc is a tool from the website alvtieto.fi, which helps small businesses with accounting, VAT and taxes. The app is completely free to use and download!
More info about the mobile app and how to calculate VAT can be found here https://www.alvtieto.fi/alvcalc-alv-laskuri-mobiilisovellus. AlvCalc for Finland has a brand new modern layout, and a smart interface, for swift calculations. The app automatically resizes to different screen sizes and looks perfect on both mobiles and tablets in all sizes and formats.
This app supports several languages: Finnish, Swedish and English.