Audiveris might be a bit more popular than Orpheus App. We know about 1 link to it since March 2021 and only 1 link to Orpheus App. 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.
[forScore] is the leading app on iOS afaik. I'm on Android and use Orpheus App which do few things (compared to forScore probably) but do them well. Source: over 1 year ago
Here’s a free/open-source one I’ve used in the past. Https://github.com/audiveris. Source: over 2 years ago
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