This is why I purchased the Honeywell 9000 WiFi Color Touchscreen Thermostat[0] instead. The nice thing about the Honeywell is that you can use it completely offline if you so choose. It also has a REAL interface, so an app is an optional extra not a required component.<p>Both the Nest and Honeywell require the infamous C wire, both are similar installation, and both cost around $200.<p>[0] <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Honeywell-RTH9580WF-Touchscreen-Thermostat-Premier&#x2F;dp&#x2F;B00FLZEQH2" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Honeywell-RTH9580WF-Touchscreen-Thermo...</a><p>PS - And, yes, the Nest has a theoretical setup without the C wire, but you&#x27;ll lose key things like fan control, or if the boiler doesn&#x27;t run enough the entire thing can die. On both it is ultimately C wire or don&#x27;t waste your time.