+Huawei demonstrated it first on their device and it's only natural that a scale functionality made it into an an iPhone 6s app, using a clever trick for the calibration BTW

For some reason #Apple didn't like that, go figure!

It's this kind of days you know that as a developer and hacker you are reminded that you invested in the right platform years ago.

Original implementation on the Huawei Mate S:
http://consumer.huawei.com/minisite/worldwide/mateS/touch.htm

#supercurioBlog

Turning the iPhone 6s Into a Digital Scale — Startups, Wanderlust, and Life Hacking
How to turn an iPhone 6s into a digital scale without salami.

Source post on Google+