RadaeePDF - RadaeePDF is a library for developers who want to render, manipulate, annotate PDF files on Android, iOS and Windows.
Courseroot - Biggest online course database on the web
genei.io - AI-generated summaries for any article or research paper.
Alcamy - Free, open self-learning platform. Learn & teach anything.
SignRequest for G Suite - Sign yourself or get documents signed Easy, secure, legally binding and free. SignRequest helps you sign online.
CurrencyStack - A free modern currency data API for fintech apps.