When comparing Briefs vs Noodl, the Slant community recommends Noodl for most people. In the question“What are the best tools for prototyping mobile interactions/animations?” Noodl is ranked 11th while Briefs is ranked 21st. The most important reason people chose Noodl is:
You can use REST API to get data to your prototype.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Easy to share with clients
Briefs makes it easy to share prototypes with clients through the use of their iOS app, BriefsCase.
Pro Use external data
You can use REST API to get data to your prototype.
Pro Free
Pro Cross-platform
It is a Chrome app and you can test prototypes on any device that supports WebGL or Canvas.
Pro Prototype two-device (master — companion) apps
You can setup communication between two devices.
Pro Components
You can build one interactive component and then reuse it with different input values (like images, txt, width, speed — any value you can imagine).
Cons
Con Steep learning curve
There is very little learning material available online for Briefs. The community of active user is small, making it difficult to get any questions you may have answered.