FireRTC might be a bit more popular than Reggy. We know about 1 link to it since March 2021 and only 1 link to Reggy. 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.
There's a free app for macOS too: http://reggyapp.com. Source: over 2 years ago
I personally use firertc.com since its free, although I'm not sure if the sign up is open anymore. Source: about 3 years ago
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