Does the Honeywell Home app still exist?

Yes, the Honeywell Home app continues to exist and is fully operational, serving as the official mobile management application for modern Resideo and Honeywell Home smart thermostats (such as the T5, T9, and T10 Pro models). While older legacy products utilized different software platforms, the Honeywell Home app is actively updated on both iOS and Android stores to provide remote access, scheduling, and system monitoring.

Fixing a thermostat that has lost communication or dropped offline from your Wi-Fi network and mobile application requires a systematic troubleshooting approach. First, check your home internet router to ensure your 2.4 GHz wireless network is broadcasting active signals and that other devices connect properly. Second, perform a soft restart on the thermostat by removing the display faceplate from its wall base for 10 seconds, then snapping it back on to force a reconnection. If network settings remain corrupt, navigate to the thermostat's settings menu, clear existing Wi-Fi configurations, and re-enter your wireless password. Safety Warning: Ensure low-voltage power is handled carefully when removing faceplates. Verification: Check the device screen to confirm the Wi-Fi signal icon is solid and network connection status reads online.