SurveyMonkey is the world's leading online survey platform, but it is complicated and expensive.
Autopilot has the ability to create "Capture forms" which can act as surveys. You can then send those responses to yourself via Slack, SMS, and analyse the responses in ledger form, reports, and advanced graphs.
Autopilot also allows you to have automated survey follow ups and segment your customers into audiences based on their survey response.
The Autopilot REST API allows you to send contacts from Autopilot to your app, add contacts from your app into Autopilot, trigger Autopilot journeys from your app, keep unsubscribes in sync between Autopilot and your app, enhance contact profiles with custom fields and data from your app and get data from your app into and out of Salesforce using Autopilot's native integration.