Description: AnkiDroid is a free and open-source flashcard app for Android. It allows users to create decks of flashcards with text, images, audio, and video, and uses spaced repetition to optimize studying. AnkiDroid can help memorize anything from languages, to science material, to trivia.
Type: software
Pricing: Open Source
Description: PDF24 Creator is a free PDF printer for Windows that allows you to easily create PDF files from any program. It installs as a virtual printer and works by printing from other apps to generate PDFs.
Type: software