Kindle Robot - Send books to Kindle via a Telegram bot 📚🤖
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
Eplee - A simple and beautiful open-source ePub reader
Felt for iPhone - Handwritten cards for the modern world
FolioReaderKit - A Swift ePub reader and parser framework for iOS.
Inkpact - Send genuine handwritten messages in just a few clicks