What is Boolean?

Boolean is a service for sending single question surveys by email. The survey format is one question and two predetermined answers.


Customize look of survey

You can customize the survey to make it look like you sent it. Add your company’s name, logo in email body, subject and sender name.

Real time responses

See responses to your survey in real time in our dashboard.


You can segment responses to find patterns in negative response. Read more about segmentation here. This is a paid feature.


Prevent spamming your users with too many surveys by capping the number of surveys a recipient can receive in a day, week and month. By default, a recipient will receive a maximum of 1 per day, 2 per week and 4 per month.


Use our RESTful API to fully automate your survey workflow. Read API reference here.


Survey recipients can add comments to their response.

Easy unsubscribing

Recipients can opt-out of receiving surveys from an account by clicking unsubscribe link in footer of email. They can also opt-out of Boolean surveys completely using the opt-out form in our website. You can unsubscribe recipients from specific surveys in your account using the API.


Schedule surveys to be sent in a future time. Read API docs for more information.