FAQ

Kankan turns a LiDAR-equipped iPhone Pro or iPad Pro into a feng-shui compass. Scan a room to build an accurate floor plan, watch the luopan ring lock to true north over the live camera view, then tap any wall for its direction reading — what suits it and what to avoid.

A LiDAR-equipped device running iOS 26 or later: any iPhone Pro, or an iPad Pro from 2020 onwards. Devices without LiDAR can't run the AR room scan — the app tells you so up front instead of failing silently.

You can import an existing floor plan (an image or PDF) and read directions from the 2D plan viewer — no scan needed. The full AR experience still requires LiDAR.

Indoors, magnetic compasses drift — steel, wiring, and furniture pull the needle. Kankan combines your location with AR tracking to lock onto true north, the reference direction readings are meant to use. On Wi-Fi-only iPads without GPS, Kankan falls back to magnetic north and shows a badge saying so.

Rotate your device in a figure-eight to recalibrate, and move near a window if Kankan is waiting for a positioning signal. If a consistent bias remains, Settings has a heading-offset dial — one global offset for your device's compass bias, plus a per-space offset.

Allow camera and location access, then walk the room's perimeter holding your device — Kankan builds the floor plan as you go. Tap “Finish Scan”, then tap any wall, corner, door, or window on the plan for its direction reading.

Reopening a space on-site relies on ARKit recognizing the room, and changed lighting or moved furniture can break that. Stand at the marked spot, pan slowly, and give it a moment — on a new device the first relocalization takes longer. You can always view the floor plan without AR, or start a fresh scan.

No. Sign-in (Apple or Google) is optional — tap “Maybe later” and the full scanning flow works without one. An account exists only to sync your subscription across devices.

On your device — and, if you enable iCloud, in your own private iCloud storage. Room scans, floor plans, and readings never reach our servers; we cannot see them. See our Privacy Policy for the full picture.

The app sends a small, fixed set of anonymous product events (like “first scan saved”) tied to a random device ID — never your scans, readings, or location. Turn it off anytime in Settings → Privacy → Share analytics. No ads, no third-party tracking.

It's optional. Add it and readings are personalized to you; skip it with “Not now” and everything else works. It's stored on your device, and synced to your account only if you sign in.

An auto-renewing subscription that unlocks the full reading experience: each wall's do's and don'ts, flying-star guidance that refreshes monthly, unlimited scans, floor-plan import, one-tap PDF and image export, and two readings by a real consultant. Billing is handled by the App Store, and the yearly plan includes a free trial. Manage or cancel anytime in Settings → Apple Account → Subscriptions.

A classical time-based layer over your floor plan: each direction carries annual and monthly stars with their own guidance — good for money matters, avoid renovation, and so on. Stars shift on a monthly cycle, and Kankan can notify you when the new month's chart lands.

English, Simplified and Traditional Chinese, Japanese, Korean, and Malay.

Email [email protected]. If you're reporting a problem, include your device model and iOS version.