With Typeform, conditions are called Logic. Here are some articles explaining how to use it:
- Use logic to hide questions based on previous answers or URL parameters
- How to combine Branching and calculations and Outcome quiz with Logic
- Get the most out of Logic, variables, and scores
- Using and/or with Logic
- Logic not working? Here are 5 ways to fix it
- What type of logic should I use, and where can I find it?
Note: Logic isn't available on our mobile builder just yet. Edit your typeform on desktop to get the full power of Logic!