Based on our record, Mydraft.cc 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.
You might consider hiring someone to build it for you. Recently got a simple app built using Upwork, hired two guys, got two versions of the app, went with the one we liked best. We mocked up some wireframes (https://mydraft.cc/ is a good tool for that), set the basic parameters we needed it to fill, and it was way easier than I thought it'd be. Source: almost 2 years ago
Wireflow - Create beautiful flowcharts
SuperNotecard - Introducing SuperNotecard. SuperNotecard is an online writing tool that features virtual notecards to help arrange facts or scenes, track details, organize paragraphs, and clarify your composition process.
Invision - Prototyping and collaboration for design teams
vym - VYM (View Your Mind) is a tool to generate and manipulate maps which show your thoughts.
Pencil Project - Single-user mockup / wireframing / diagramming tool
Freeplane - Freeplane is a powerful and free software for building mind maps.