September 22 2018, 16:14

The first rule of a good interface: explain why someone should do something (enter an email or check a box) or not do it (do not touch the furniture, turn off the mobile phone, or maintain silence). In our country, people don’t understand why embassies or airplanes require turning off mobile phones, yet you can’t touch exhibits in a museum with hands. This is because it’s not explained.

September 20 2018, 00:48

I wanted to write that the use of eye tracking mechanism in phones will be common in a couple of years, but I decided to search online to check if there was anything on the topic. And here is an excellent study, with an analysis of options and ready solutions.

https://medium.com/@taolu_99738/developing-of-eye-tracking-application-for-smartphone-b875c50ee0c3