Thread Doctor app icon

See your Thread mesh.
Find the broken link.

Thread Doctor scans the Matter accessories paired into your Apple Home, reconstructs the Thread topology they report, flags single points of failure, lets you configure supported device settings, and uses AI to explain how to fix problems.

Download on the App Store

App screenshot headed “See your mesh. As a graph.” showing the Thread mesh graph — the Border Router drawn as a half-cyan, half-purple square because it is also the Thread Leader, routers as green circles, end-device accessories as blue dots, and RSSI-coloured links between them. App screenshot headed “Scan your Matter over Thread network.” showing the Topology list — Apple BorderRouter marked as the Thread Leader, Thread devices with router and child role badges, best and worst RSSI values, and battery percentages for end devices like Eve Blinds and the KLIPPBOK water leak sensor. App screenshot headed “Find the routers that orphan your accessories” showing the Re-parent risk screen — routers graded medium and low by how dangerous their loss would be, each listing how many accessories depend on it and how quickly orphans would re-parent. App screenshot headed “AI fixes for your Thread mesh” showing AI Diagnose results — a one-sentence summary and findings that cite exact RSSI values, Thread channels, and accessory names, each with a concrete fix suggestion. App screenshot headed “See all the Thread diagnostic values” showing a device detail screen for the KLIPPBOK water leak sensor — link quality, vendor, product and firmware, plus health values like reboot count, uptime and battery level. App screenshot headed “Configure your Matter devices” showing a dimmer's Configuration section — power-on behavior set to Previous state, on level, power-on level, an On/Off transition time being typed on the numeric keypad, default move rate, and About this device rows with the vendor and product names. App screenshot headed “Use your own AI API keys” showing the AI Diagnose settings — provider and model pickers, a reasoning-effort slider, and a bring-your-own-key field noting the key is stored only in the iOS Keychain on this device.

On-demand mesh graph

Topology reconstructed from live Matter diagnostics. RSSI-coloured edges, single points of failure ringed by severity, and the Thread Leader marked when the scan can identify it.

Re-parent risk detection

Finds routers whose loss would orphan accessories — and grades how dangerous each one really is.

Battery monitoring

Charge levels for every battery accessory in your mesh — Eve, Aqara, Yale, IKEA. Low-battery filter surfaces devices about to drop off.

Device configuration

Change supported Matter settings such as power-on behavior, transition times, sensor delays, thermostat controls, and lock behavior. Every change is read back from the accessory.

AI-powered fixes bring your own key

Findings cite real RSSI values, accessory names, and HomeKit rooms — not generic advice. Pay your provider directly.

Scan history

Last 20 scans saved on device. Browse past snapshots to catch regressions.

100% private

No backend, no analytics, no proxy. Your LLM API key lives in your iOS Keychain — this device only.