TierReader is an iOS app that generates AI-powered reading passages tuned to your level, then turns every new word into a spaced-repetition flashcard — so you build vocabulary without leaving the page.
From story generation to vocabulary mastery, TierReader covers the full reading workflow.
Stories tailored to your proficiency level and interests, generated on demand by Google Gemini.
Unknown words are automatically added to a flashcard deck reviewed at optimal intervals.
Cloze, multiple-choice, comprehension questions, and flashcard drills — all in one app.
Tap any word for an instant definition — no network needed. Every language ships with its own offline dictionary and graded word bank.
See how many words you know, track your reading history, and export your data to CSV/TSV.
Your vocabulary and reading history sync across iOS devices via iCloud CloudKit.
Choose from five languages and set your current proficiency tier.
Gemini writes a story matched to your level, seeded with words from your active word bank.
Tap any unknown word for an instant definition. Mark it to add it to your review deck.
Practice with cloze, comprehension, and flashcard quizzes until words move into long-term memory.
Each language ships with a level-graded word bank and offline dictionary database.
JLPT N5–N1 vocab & grammar
CEFR A1–C2 vocab
CEFR A1–C2 vocab
CEFR A1–C2 vocab
CEFR A1–C2 vocab
Download TierReader on your iPhone or iPad and start reading in your target language today.