With 2 iPads, the simplest way would be to share the project via AirDrop. Enable WiFi and Bluetooth on both devices, turn them both on and put them next to each other, then they will appear as Airdrop targets in the Share menu.
With 2 iPads, the simplest way would be to share the project via AirDrop. Enable WiFi and Bluetooth on both devices, turn them both on and put them next to each other, then they will appear as Airdrop targets in the Share menu.