Pros
- Free plan is generous
- Prototypes feel real in a user test
- Collaborative
Cons
- Learning curve for non-designers
- A prototype is not a working product
What it does
Design and prototyping tool; screens link together so a tester can click through a product that does not exist.
Using it to validate
Put a clickable prototype in front of five target users and watch where they hesitate. Ask what they would pay before showing a price.
Pricing
Free for small teams; professional plans from about $15 per editor per month.
Who it suits
Software and app ideas.