How do I install a live wallpaper on iPhone?

After the render finishes you'll get an iOS Live Photo bundle (a .heic and a .mov file). On iPhone:

1. AirDrop or iCloud the .heic + .mov files to your phone (they import as one Live Photo into your Photos library).
2. Open Settings → Wallpaper → Add New Wallpaper.
3. Pick Photos, find the Live Photo you just added, and tap Set as Wallpaper.
4. Make sure the Live toggle (bottom-left of the preview) is enabled, and apply.

The wallpaper now animates whenever you long-press your lock screen. Works on every iPhone since the iPhone 6s.