Tapas - Tapas – Comic, Novel and Stories is free to use digital comic application by Tapas Media that puts tens of thousands of comics and web novel on your mobile device.
Breathing Halftone - Images go whoa with lots of floaty dots
Piperka - Webcomics listing and subscription manager
Headspace - Meditation made simple. Brilliant things happen in calm minds.
webcomic.app - Create a website for your webcomic.
HalftonePro - Create custom vector halftones quickly and easily