I like the fact that it's browser but have been using mobile voip app and quite happy with it.

Not using voip much recently but will give it a try next time... What with whatsapp, google meet etc i wish you a lot of luck

that looks cool, but honestly Yadaphone looks and feels better. I watched a youtube video with the founder, maybe you can check it out for some advice. The person has a 14k MRR (https://www.youtube.com/watch?v=88BbTpbWVpY)

At first I thought the UI shot was just a screenshot... but it was actually a functioning UI. Nice!

Yep, Skype created a huge vaccum to fill.