Based on our record, ReqView 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.
Disclosure: I'm involved in the product mentioned - https://reqview.com Based on our experience with some heavyweight requirements management tools we tried to develop quite the opposite a simple requirements management tool. - Source: Hacker News / about 2 years ago