Support

AC Control scans your local Wi-Fi network using two methods:

• mDNS/Bonjour — for HomeKit-paired accessories and Matter 1.2+ devices. These announce themselves on the network and are detected automatically.
• UDP broadcast — for Tuya/Smart Life, Midea, and Gree units. AC Control sends a broadcast probe packet; compatible devices on the same Wi-Fi reply with their identity.

All discovery happens over your local network. Nothing leaves your home. No cloud, no account, no pairing with third-party apps required.

AC Control supports the following protocols and device families:

• HomeKit — any AC paired in Apple Home that exposes an HMServiceTypeHeaterCooler service (typically: Ecobee, Sensibo, Cielo, and HomeKit-certified units from major brands)
• Matter 1.2+ — AC units that support Matter Thermostat or HVAC cluster, discovered over LAN
• Tuya / Smart Life — smart ACs controlled via the Smart Life or Tuya app; also covers rebrands including Midea (when sold as Smart Life), Hisense, and TCL Tuya editions
• Daikin BRP069 — Daikin units with a BRP069 Wi-Fi adapter (the small white rectangular module)
• Midea V3 — native Midea protocol used by ACs sold under the Midea brand directly
• Gree EWPE Smart — Gree units and closely related rebrands (some Carrier, Cooper&Hunter, and Comfort-Aire models)

If your AC is not listed above, it is likely not compatible at this time. Email us with the brand and model and we will investigate support.

AC Control requires that your iPhone and your AC units be on the same Wi-Fi network (same subnet / SSID). Commands travel from your iPhone directly to the AC over LAN — there is no cloud hop.

• 5 GHz vs 2.4 GHz: Most smart AC adapters only support 2.4 GHz. If you are having trouble, ensure your router's 2.4 GHz band is active and your iPhone was connected to it when the AC was set up. On a router with "band steering" enabled, you may need to connect your iPhone to the 2.4 GHz SSID explicitly for initial discovery.
• IoT VLAN / guest network: If your router puts smart home devices on a separate VLAN or guest network, the App will not be able to reach them (cross-subnet broadcast is blocked by most routers). Move the AC and iPhone to the same network segment.

No. AC Control operates entirely over your local Wi-Fi. No internet connection is required to discover or control your AC units. The App makes zero outbound requests to the internet and has no backend server.

Bluetooth Low Energy is used exclusively for two specific cases:

• Matter commissioning — when pairing a new Matter-compatible AC that has not yet joined your Wi-Fi, the device advertises over BLE to allow initial setup
• HomeKit Accessory Protocol (HAP) BLE — some HomeKit accessories communicate over BLE instead of or in addition to Wi-Fi

BLE is never used for tracking, advertising, or any purpose beyond device discovery and initial commissioning. If you deny the Bluetooth permission, you can still control AC units that are already connected to Wi-Fi.

iOS 14 and later require explicit permission for any app that communicates with devices on your local network. When you grant this permission, AC Control can:

• Send mDNS/Bonjour queries to discover HomeKit and Matter devices
• Send UDP broadcast packets to discover Tuya, Midea, and Gree units
• Open TCP/UDP sockets to the IP address of individual AC units to send commands

Without this permission, AC Control cannot communicate with any AC. The permission request appears automatically the first time the App attempts a discovery scan.

Yes, it is completely free. AC Control has no In-App Purchases, no subscription, no premium tier, and no ads. Every feature is included at no cost. Download it, use it, keep it.

No. AC Control uses the Tuya LAN protocol, which communicates directly with devices on your local network without routing through Tuya's cloud. You do not need to log in to Smart Life, Tuya, or any third-party app. The App uses the device's localKey (retrieved during setup and stored in your iOS Keychain) to encrypt LAN commands.

1. Make sure your iPhone and the AC are on the same Wi-Fi network — not a guest network, not a different VLAN
2. Check that the AC adapter is powered on and connected to Wi-Fi (its indicator LED is usually solid when connected)
3. Pull down to refresh the device list inside the App
4. For Tuya devices: make sure the unit was provisioned on 2.4 GHz and that your router allows broadcast packets between devices
5. For HomeKit: open the Home app to confirm the accessory is reachable there first
6. If none of the above helps, email us with your AC brand, model, and adapter model

AC Control supports Daikin units with a BRP069 Wi-Fi adapter. Key things to verify:

• Confirm the adapter model is BRP069A or BRP069B (stamped on the label on the adapter itself)
• The adapter must be on the same Wi-Fi subnet as your iPhone
• Make sure the Daikin adapter is not in "AP mode" (its own hotspot) — it must be joined to your home network
• Some older BRP069 firmware versions may require a firmware update via the Daikin mobile app before LAN API is available

No. AC Control is intentionally local-only. Commands are sent directly from your iPhone to the AC over Wi-Fi. When you leave your home network, control is not available — and no data is routed through any cloud service. If you need remote access, you can use the vendor's official app alongside AC Control for home-network use.

No. AC Control has no backend. Your device list, preferences, and Tuya device keys are stored exclusively on your iPhone (UserDefaults and iOS Keychain). Uninstalling the App removes all of this data permanently. See our Privacy Policy.

AC Control reads only the HMServiceTypeHeaterCooler service from accessories already paired in Apple Home. It reads and writes temperature setpoint, operating mode, fan speed, and power state. It does not access other HomeKit accessory types, scenes, automations, or user data. No HomeKit data is transmitted outside your device or local network.

AC Control requires iOS 18.0 or later and runs on all iPhones that support iOS 18. The App is optimized for iPhone — there is no iPad or Mac version at this time.

Email christian@irack.mx and include:

• Your iPhone model and iOS version
• App version (shown in Settings inside the App)
• AC brand, model, and adapter model (if applicable)
• Steps to reproduce the issue, or a description of the feature you'd like to see
• A screenshot or screen recording if the issue is visible

We review every message and respond within 48 business hours.