Thanks for hunting this @chrismessina! that was a big surprise! Here's an overview: I made Pikatool really quickly, within a week without any proper testing or planning - kind of whilst procrastinating, so you can call it a prototype! It's far from perfect which is why I have the chat integration, through which anyone can quickly suggest changes and improvements. Overall, it's just to give a quick visual overview of the landscape of prototyping tools available. Next steps are to add the tools being suggested by people, improve the rating system so that it's based more on facts as well as opinion/judgement, and then take it beyond design/prototyping. Anyway, hopefully it's useful as it is - suggestions and criticism welcome ✌🏽 cheers!

Found some great tools through this. Thank you!

Can we suggest adding MockFlow - https://mockflow.com to your list of tools ? It provides wireframing and click-thru-prototypes

Awesome collection of prototyping tools and Pikatool is really helpful. As we are doing prototyping of apps, this helped a lot to find the best tools for the job.

Great tool! Would you please also add meta data for each one to show which OS they support?