Reji - Improve your vocabulary hassle-free 📚
Zorbi - Spaced-Repetition Flashcards - Other tools are built by boomers, Zorbi is built by students.
Synonymful - Improve your vocabulary and communicate like a pro.
SmartCards+ - Spaced Repetition Software for iOS. Modern, powerful and easy to use.
BurningVocabulary - Touch and highlight YouTube & Netflix subtitles
Mochi - Write notes and flashcards with Markdown and study them with spaced repetition.