Yes, zInspector has the most powerful sync capability on the market. You can log into the mobile app on a new device and sync available property definition data from the website to the device within 30 seconds (for the latter, a mobile or WiFi connection is required). You can use up to 2 (two) different devices simultaneously or sequentially with a single username and password.
While you can perform Quick Pictures activities on multiple devices for the same property at a given time or in tandem with a single Inspect mode inspection activity, you cannot perform a collaborative Inspect mode inspection activity on multiple devices either simultaneously or sequentially. An Inspect mode inspection activity begun on a device by a given user must be completed on that same device under the same user name.