CalculatePlus is described as 'ble to perform metric and non-metric conversions and basic calculations on a huge database fast and with brilliance' and is an app in the Education & Reference category. There are more than 10 alternatives to CalculatePlus for a variety of platforms, including Android, Online / Web-based, iPhone, Android Tablet and Windows Phone. The best alternative is Unit Converter Ultimate, which is both free and Open Source. Other great apps like CalculatePlus are Material Unit Converter (Free), Convertbot (Paid), multiConvert (Free, Open Source) and Converter (Free, Open Source).
Pocver contains a rich collection of unit conversion tools and it's simple to use and minimalist, currently has 6 conversion tools that are mostly used in daily life and we aim to continually expand the tools set base on user demands.