Free is not really a sustainable business model. Unless we start showing ads in the systems list and every time you view some computer details. Not very elegant or professional in my opinion.
Without the support from all the paying customers Pulseway would not have existed.
As for the pricing, if you look around you'll see $8-15 per server per month. We're $1.20 per server per month and we have also included one Remote Desktop concurrent connection in all the plans.
The solution requires a lot of traffic, traffic that we must pay, we surely do not get it for free. Same goes for all the cloud servers we use to support the solution.
Hope it makes some sense.
Marius