MoonClerk - You're just 5 minutes away from accepting recurring payments and one-time payments online. Explore for Free. No credit card required.

Survey Monkey - Create and publish online surveys in minutes, and view results graphically and in real time. SurveyMonkey provides free online questionnaire and survey software.

PayHere - Run a services business or startup? Charge recurring and one-off payments with beautifully designed payment forms. Get up and running in less than 5 minutes!

Typeform - Create beautiful, next-generation online forms with Typeform, the form & survey builder that makes asking questions easy & human on any device. Try it FREE!

Outseta - The "lean" tech stack for SaaS start-ups

Google Forms - Simple web forms from Google.