I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
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Prisma - Art filters using artificial intelligence to transform your photos into classic artwork.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Photolemur - Photo enhancement on autopilot
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Visionn - Real-time artistic photo and video effects