Record3D is a free iPhone app developed by Marek Simonik. It allows users to capture their own 3D videos using the selfie FaceID camera or the LiDAR sensor. The app offers various export options, including FBX, glTF, sequence of PLY files, OBJ, and Alembic. Users can also use WebRTC Wi-Fi Streaming to export RGBD mp4 videos.

One of the standout features of Record3D is the True3D effect, which allows users to experience their volumetric videos in augmented reality. By pressing the "3D" button in the vertical toolbar, users can turn their iPhone or iPad into a window through which they can see into the world behind the screen. It's important to note that True3D is only activated in portrait orientation.

Record3D also caters to digital artists and developers by offering the ability to stream RGBD video from the device to a computer via a USB cable. The app provides open-source C++ and Python libraries for easy integration. Privacy-conscious users will appreciate that Record3D does not track or share any user data.

For additional functionality, users can purchase the Wi-Fi Streaming & RGBD Video export Extension Pack. This allows for streaming 3D videos (with color-coded depth data) via Wi-Fi using WebRTC, even into a web browser. However, it's worth noting that Wi-Fi Streaming only works over a local network (LAN) and not over the internet.

Overall, Record3D is a versatile app for capturing and experiencing 3D videos on an iPhone. With its range of export options and the True3D effect, it offers users a unique way to explore and share their 3D creations.