1/ The toothbrush test

A helpful heuristic I use to evaluate consumer apps is the toothbrush test. I first learned about it in 2014 in a NY Times article.

"When deciding whether Google should spend millions or even billions of dollars in acquiring a new company, its chief executive, Larry Page, asks whether the acquisition passes the toothbrush test: Is it something you will use once or twice a day, and does it make your life better?

The esoteric criterion shuns traditional measures of valuing a company like earnings, discounted cash flow or even sales. Instead, Mr. Page is looking for usefulness above profitability, and long-term potential over near-term financial gain.

Google’s toothbrush test highlights the increasing autonomy of Silicon Valley’s biggest corporate acquirers — and the marginalized role that investment banks are playing in the latest boom in technology deals."

lol when I first read "the toothbrush test" I thought it was going to be whether an app is something that people use/check before they reach for their toothbrush 