ClipMe - Collaborative video with friends
Unity - The multiplatform game creation tools for everyone.
Frame.io for iOS - Real-time video collaboration, now with a native iOS app
Godot Engine - Feature-packed 2D and 3D open source game engine.
Frames - Create & edit epic vertical video content from your phone
Blender - Blender is the open source, cross platform suite of tools for 3D creation.