词光 · Word Atlas — Illustrated IELTS vocabulary with 7,298 words, UK/US audio and FSRS review. Open-source app + CC BY 4.0 dataset.
Anki is a smart spaced repetition flashcard program
Echo Loop 是一款科学、高效的 AI 英语听说训练 App,通过精听、跟读、盲听、复述和间隔复习,自动驱动学习者把每一段音频真正练懂、练熟、练到会说。
AnkiDroid: Anki flashcards on Android. Your secret trick to achieve superhuman information retention.