For creating 2D animations on Android, popular apps include FlipaClip, Animation Desk, PicsArt Animator, and Animaker.
Here's a more detailed look at some of the top choices:

FlipaClip:
A user-friendly app for creating frame-by-frame animations, suitable for beginners and casual animators.
Animation Desk:
Allows users to create 2D cartoon animations frame by frame, offering flexibility and accessibility.

PicsArt Animator:
An animation creator and cartoon maker app that simplifies the process of creating GIFs, animations, and doodles, even for those without advanced drawing skills.

Animaker:
Offers a platform to create studio-quality animation and live-action videos, with a focus on ease of use and quick results.
RoughAnimator:
Known for its smooth drawing experience and animation tools, RoughAnimator enables users to create animations using a timeline interface.
Other notable apps:
Synfig Studio: A powerful, open-source 2D animation software that works on various platforms, including Android.
Pencil2D: An open-source, easy-to-use tool for making hand-drawn 2D cartoons.
Toon Boom Harmony: A professional-grade 2D animation software, offering advanced features for creating high-quality content.
Adobe Animate: A versatile tool for creating 2D animations, formerly known as Flash.
Krita: A free and open-source digital painting and animation software.
Blender: A free and open-source 3D creation suite that can also be used for 2D animation.
OpenToonz: A free and open-source 2D animation software used by professionals for commercial and non-commercial projects.
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