One app. Every tool
students actually need.
Not a flashcard viewer. Not just an AI chatbot. Cue combines five distinct study modes — each grounded in peer-reviewed cognitive science — into one free platform built for high school students.
Self-Calibrating Spaced Repetition
The most advanced free scheduling algorithm available.
Cue runs FSRS — a peer-reviewed algorithm that models your exact memory decay curve. It predicts when you're about to forget something and schedules a review right before that moment. Over time it self-tunes: harder cards get reviewed more often, solid cards get longer intervals. It's not a one-size-fits-all timer. It's a model of you.
- 85% retention target per card
- Intervals from hours to 365 days
- Adapts to your rating history
- 38% fewer reviews vs older algorithms
AI Tutor — Powered by Grok
Explain it to me like I'm lost.
When you're stuck mid-session, don't just flip the card and move on. Ask Cue. The AI tutor explains the concept in plain language, gives you examples, and can walk through related ideas — without leaving your study flow. It knows what card you're looking at and explains it in context.
- Contextual explanations per card
- Patient, jargon-free breakdowns
- Powered by xAI Grok-3
- Works in 10 languages
1,000+ Pre-Built Flashcards
Start studying in seconds. No setup required.
Cue ships with a curated library of flashcards across major high school subjects — biology, chemistry, history, and more. Organized by topic, chapter, and subtopic so you can jump exactly where you need to go. Every card is already formatted, fact-checked, and FSRS-ready.
- Biology, Chemistry, History, and more
- Topic → Chapter → Subtopic structure
- Chapter mastery tracking
- Weak-spot detection
Live Study Battles
Race your class in real time.
Share an 8-character join code and your whole class is in within seconds. Everyone gets the same flashcard deck. The leaderboard updates live as students answer. Wind Stream mode throws in fast-paced streaks — perfect for review days, test prep parties, or just making studying actually fun.
- 8-char live join codes
- Real-time leaderboard via WebSocket
- Wind Stream fast-round mode
- Works with any flashcard deck
AI Math Practice
Unique problems, every time.
Math can't be studied with static flashcards — you need problems. Cue generates fresh algebra, geometry, statistics, and precalculus problems in real time, so you never see the same question twice. Each problem set adapts to the chapter you're in. No LaTeX, no formatting headaches — just clean practice.
- Algebra, geometry, statistics, precalculus
- Real-time generation — no repeats
- Tied to curriculum chapters
- Instant feedback and worked solution
Memory Analytics
Know exactly what's slipping.
Cue tracks every review and builds a picture of your memory health. The home dashboard surfaces your weakest cards, shows your study streak, and calls out chapters with fading retention. You always know where to focus next — no guessing.
- Weak-spot surfacing per chapter
- Retention heatmaps
- Study streak tracking
- Per-card health states
Classroom Tools
Assign, track, and print — without the admin overhead.
Teachers get a full classroom management layer: create classes, assign decks or topics, and watch mastery data roll in per student. Print formatted progress reports for individual students or the entire class. School admins can invite teachers and manage their school from one dashboard.
- Assign decks and topics
- Per-student mastery tracking
- Printable PDF reports
- School admin dashboard
Custom Flashcard Decks
Study your own material.
Create and study your own flashcard decks — then share them with a link. Anyone with the share code can save your deck to their account and start studying immediately. Great for group study, shared exam prep, or passing notes that actually stick.
- Create cards from scratch
- Shareable via link
- FSRS-scheduled like library cards
- Deck study sessions
10-Language Support
Study in the language that clicks for you.
Cue UI and flashcard content are available in English, Spanish, Chinese, Vietnamese, Arabic (RTL), Korean, Tagalog, French, German, and Portuguese. Card translations are cached in the database — you only pay the translation cost once.
- Full UI translation in 10 languages
- Arabic RTL layout support
- DB-cached card translations
- Switch languages anytime in settings
Built differently
Cue includes features that other study tools treat as premium — or don't offer at all.
| What Cue includes | Cue | Anki | Quizlet |
|---|---|---|---|
| FSRS spaced repetition algorithm | ✓ | ✓ (add-on) | Not in core product |
| Contextual AI tutor | ✓ | Not in core product | Not in core product |
| Live multiplayer study mode | ✓ | Not in core product | Premium feature |
| AI-generated math practice | ✓ | Not in core product | Not in core product |
| Teacher classroom tools | ✓ | Not in core product | Premium feature |
| 10-language UI + card translations | ✓ | Not in core product | Not in core product |
Feature availability and pricing on other platforms may vary by plan or product version. Last reviewed April 2026.
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