GUI Alternative to RemoteXY - Introducing Blynk

RemoteXY is an excellent development but $10 to run for more than 30 seconds is of concern.

Today I found in Instructable site an alternative again from Eastern Europe from what appears to be a larger development team called Blynk.

Full details are at blynk.cc but here are some of the highlights... Anyone had experience????

Similar API & UI for all supported hardware & devices Connection to the cloud using: Ethernet WiFi Bluetooth LE USB (Serial) … Set of easy-to-use Widgets Direct pin manipulation with no code writing Easy to integrate and add new functionality using virtual pins History data monitoring via History Graph widget Device-to-Device communication using Bridge Widget Sending emails, tweets, push notifications, etc. … new features are constantly added!