Based on our record, Platforma seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
There are some decent starters in the community (including some really great OS-native resources), but another option is purchase something like Platforma if you're looking to make interactive wireframes - https://platforma.ws/. Source: over 2 years ago
Linked Ideas - A macOS/iOS apps to treat ideas as links of concepts.
Source Wireframe Kit - Library of 537 blocks for desktop and mobile prototyping
Freeplane - Freeplane is a powerful and free software for building mind maps.
Contra Wireframe Kit - Open source wireframe kit for design and prototyping 🚀
vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.
Method Wireframe Kit - Find your method of being incredibly fast in prototyping.