You are allowed to export your 3D floor plan to any 3D software and modify it.
You’re not allowed to copy or modify the app.
In-app purchases are purchased from and billed by Apple iTunes, not RealScan. These purchases are subject to the terms and conditions of Apple iTunes. RealScan does not have access to Apple iTunes accounts or transactions. If you wish to confirm the type of subscription that has been purchased from Apple iTunes, please consult your apple iTunes account or receipt as each subscription will have a unique billing name. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. You can manage your subscription and switch off auto-renewal by accessing your iTunes & App Store Account Settings after purchase.