This is a tiny, ultra-lightweight app to reliably measure body fat.
The app uses a well-known U.S.Navy formulae: both Metric and Imperial. Since the formulae are different, the results may also differ slightly and you can use any of those two, according to your personal preference. Don't forget to check the manual (press the question mark on top of the main screen). This is my very first app. It is totally free with NO ANY ADS and gotchas WHATSOEVER - I totally hate ads myself. If you like this app and decide to support it, or any other future apps I may make, you may purchase "Undisturber Donation Package".
https://play.google.com/store/apps/details?id=com.stanislav.disturberDonationPackage