HMTMAA might be a bit more popular than WIP.co. We know about 2 links to it since March 2021 and only 2 links to WIP.co. 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.
Have you seen wip.chat... I'm not really suggesting it (since they charge you money) but same idea of posting goal points/checkboxes. Source: about 1 year ago
Another concept that's interesting/maybe motivating is wip.chat though I don't suggest it (not free). But it's neat (public todo's). Source: almost 2 years ago
Not incredibly accurate for all cases but I'll give you a ballpark http://howmuchtomakeanapp.com/. Source: over 2 years ago
I am looking to build something like this: http://howmuchtomakeanapp.com/. Source: over 3 years ago
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