Creature
Spine
Synfig Studio
Unity 2D
Spriter Pro by BrashMonkey
Blender
CrazyTalk Animator
Animation Paper
React Native Roadmap
NativeBase
CreatureSpine - Spine is 2D animation software designed specifically for software and game development.
NativeBase - Experience the awesomeness of React Native without the pain
Synfig Studio - Just another WordPress site
Unity 2D - Unity 2D is a powerful and feature-rich game design solution built from the ground up to fulfill every basic and advanced need of the developer.
Spriter Pro by BrashMonkey - Spriter : an intuitive 2D animation tool for video game makers.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.