Not only Ad-Free, but almost NO "Permissions" is required at all. In addition, its package size is ONLY 0.07 MB.
The full-free app is such Pure & Lightweight. But it is also Accurate and has Max Precision. It respects your privacy, device, and your time.
1. The utility app is in full compliance with authoritative definitions of every involved units of measurement. As a result, any conversion result is exact and high precision. Check the app screenshots, please.
2. In addition, it is Ad-free and pure, without any advertising annoyance. You may enjoy a faster, cleaner experience.
This pure app implements any unit conversion completely in Android devices offline, without network access. That means you can perform unit conversions with this utility app anywhere even if your device has no internet connection.
3. In fact, with respecting to users' privacy, the app is safe and reliable enough because there is almost NOT ANY "Application Permissions" required at all.
4. The accurate & pure app is also very very lightweight as the size of package installer is so small as only 68 KB, i.e. 0.07 MB. Very few unit converter apps are more lightweight than this one.
5. The converter app just focuses on the basic unit categories: Length, Area, Volume/Capacity, Weight, and Temperature. Any unit can be converted to each others in the same category. The app is expected to help those who need exact conversions between the Imperial or US customary system and the Metric system for those basic units of measurement.
6. Specially supports conversions from inch fraction or foot fraction to common metric units.
Also supports conversions from "x feet/ft + y inches/in" to common metric units.
7. More app screenshots are available at Google Photos: https://goo.gl/photos/94PhYU7fyBt6b2hQA
In one word, this is an Accurate, Clean, and Full-free unit converter app for Android-based tablets or phones with a big display(x >=480px & y >=725px). It is just for those who need Maximum Precision in basic unit conversions.
Please check the full-featured edition, Smart Unit Converter Pro, if you just feel the supported units of measurement are not enough yet.
Search with keyword, SmartUnitConverterPro_Google, on Google Play to find the PURE app quickly.
The full-featured and paid app supports much more basic units which are frequently used, such as ounce(oz av, oz t, oz ap), pounds(lb), kg, g, tonne, long ton, short ton, gallon(US gal, UK gal, US dry gal), fluid ounce(fl. oz, US or UK), tablespoon, teaspoon, cu. ft, cu. in. cu. m, milliliter, liter, acre, are, ha, sq. mi, sq. yd, sq. ft, sq. in, sq. km, sq. m, km, n mi, mi, m, yd, ft, in, rod, chain, furlong....