In a free version of the app some objects and customisations are locked. If you'd like to unlock and experience the full power of the Planner 5D app the best option is to purchase a subscription. With iOS app you can pick between the weekly and yearly ones.
See Also
Using Upload a Plan Feature | Planner 5D Help CenterHow to get Planner 5D for freeCreating a New Floor (Android) | Planner 5D Help CenterAdd a New Floor & RoomYou can also join our weekly design battle as the main prize is a month of free access!
Apart from that you have an option to unlock any object for 72 hours every day. Log in to the app, navigate to the Profile and gather your reward!
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Unlocking Premium Perks on a Free Plan (iOS)
