Android Giveaway of the Day - Simple Flashcard Manager

Unlimited free sets and flashcards
We don't track you or store any information about you
Sync using your dropbox account, your cards and sets are always available for offline studying
Tags
Spaced Repetition
Quick add, and flexible import, and export options
Schedule notifications of flashcards that you want to study so you can study without even opening the application or picking up your phone, if you have an Apple Watch
Flashcard autoplay and auto-pronounce loops over your flashcards for times when you cannot use your hands
Spell, listen, and multiple-choice practice quizzes
Dark mode across the application for night-time studies
Pronunciation using the operating system's built-in voices (the number of languages may vary between devices and operating system versions, pronunciation can be enabled by setting the term's and definition's language in the study set settings)
Analytical charts to track your progress
Global search by keywords in all sets

Premium - with a one-time fee you can enjoy all premium features on all your devices forever
Unlimited new updates
No ads
Unlimited tags
Increase the 10 notifications limit to 60 so you don't have to open the app that often
Increase the total of 500 flashcards per study sets to 3000
Unlimited Images (as long as you have space in your Dropbox account)
Full review history of all cards
Custom revision cycles adjusted to your own pace