Based on our record, UltraStar Deluxe seems to be more popular. It has been mentiond 2 times since March 2021. We are tracking product recommendations and mentions on Reddit, HackerNews and some other platforms. They can help you identify which product is more popular and what people think of it.
Https://usdx.eu/ - works, rather old, abandoned. - Source: Reddit / 5 months ago
Well, you have https://www.karaoke-forever.com/, which you could probably host and get setup or, if it's not as important for you to have it self-hosted to access everywhere but just "self-hosted" on a local machine, you have https://usdx.eu/, which I believe is the closest to what you will find of Singstar. - Source: Reddit / 5 months ago
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