Hi there PH,
Built this as my side-project for a while and since it's useful for me, I thought it would be useful for anyone else. I've been receiving some good feedback and improving the platform with that.
numbers.today is lacking native mobile apps, but already has responsive interface and you can add a quite nice icon to your homescreen.
Also, as I'm focused on security and privacy, just launched HTTPS support and reached A+ grade with SSL Labs test.
Best, R
