What the real Shabbos APP should be

Shabbos App -shut the phone on shabbos

Much controversy on what was thought to be satire and a hoax is actually no joke at all. It’s very real. A group of mostly "shomer shabbos" jews  want to observe Shabbos and use their smartphones. They are in the process of inventing the  Shabbos APP. The developers claim to have researched halachic reasoning and opinions on the subject. They claim that this APP takes care of all halachic isurim that apply to using a smart phone on shabbos. No point yet to debate or even give any credence to these leitzanim.

What they should work on is a  real Shabbos APP. One that will lock the phone completely on Shabbos. From  Shkia to Tzais hakochavim. Similar to the new shabbos switch they invented.
Written bli shum chashash of chilul shabbos.