Based on our record, AreYouInterested seems to be more popular. It has been mentiond 2 times 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 can try https://areyouinterested.co. Source: about 3 years ago
Also, if you want to add some idea validation tools, then look at this and this. Source: about 3 years ago
IdeasAI - OpenAI-powered startup idea generator
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Curaturae - Curaturae is a 'writing tool' that connects your words to images from Smithsonian's collection of 3M+ artifacts.
'X for Y' Idea Generator - Pitch a startup idea in 60 seconds