The Nest app from Nest Labs Inc lets you interact with all of your Nest branded smart home products. If you use a Nest Learning Thermostat, Nest Alarm, Nest Camera or Nest Secure security system, this is the app you need to stay on top of things.

If you have a Nest Themostat you can use this app to control the temperature, monitor your energy usage, control your hot water and get temperature alerts if the temperature in your home changes too much.

A Nest Secure alarm system lets you remotely arm and disarm the system, track who is coming and going, invite guests with unique access codes and receive security alerts that let you know when and how an alarm was triggered. This works well with a set of Nest Cams that you can view live through your phone. The cameras can also send alerts based on motion sensor activity and even facial recognition data.

Users with a Nest Protect system can beenefit from smoke and carbon monoxide alerts no matter where they are. You can use the app to silence alarms, check battery statuses, run Safety Checkups and check a historical log of alarm events.

All in all, the Nest app is essential if you use any Nest smarthome equipment.