How testing at 300 sites taught this founder what Silicon Valley gets wrong

By Yajush Gupta · 7 August 2025 · News

How testing at 300 sites taught this founder what Silicon Valley gets wrong

What Silicon Valley Gets Wrong About Mobile App Design

Billie Onsite CEO Annie Liang spent years perfecting her app's UI, but it wasn't until she tested at 300 sites that she discovered a shocking truth. Click to learn what she wishes she knew sooner.

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Summary

Fifteen app iterations, patent-pending UI, voice activation. Why Billie Onsite CEO Annie Liang obsesses over one-handed mobile operation.