
They all touch customer data, but they solve four different jobs. The useful comparison begins with what you need to learn, where you need to ask, and what must happen after the answer arrives.

One is a 20-year-old bootstrapped company that makes nothing but forms. The other is a free feature tucked inside a $200 billion suite. That difference decides which one you should actually use.
The Barcelona company that decided forms should feel like a conversation - and got millions of people to actually finish them.
Twenty years, 35 million users, and not a cent of venture money: how Aytekin Tank turned a coder's most boring chore into a form-building empire.
How a developer tired of building the same forms over and over turned a no-code side project into a workflow-automation company trusted by 25,000 organizations.
Most survey companies can read your answers. BlockSurvey built one that can't - end-to-end encrypted forms with an AI agent on top, run by two ex-fintech engineers who won a hackathon and never went back.