Three ways to learn. One place kept.
Scroll a feed, play a game, or sit down with a study guide. All three draw on the same Knowledge Packs, and the app remembers where you were.
You should never feel caught in a lesson you can't step out of.
A card takes seconds and a game round takes a minute or two. Close the app whenever you need to, and it opens where you left off.
Next time you feel like scrolling, scroll this.
A vertical feed built from the packs you've installed: one idea per card, with a short game every so often so what you just read gets used. Swipe on whenever you like.
- One card per screen
- Games arrive between cards
- Focus on one pack, shuffle them, or set your own mix in the Packs tab
Something to do with your thumbs.
24 short games that run on the pack you're learning. Each needs a certain kind of content, so every pack offers the games that fit it.
Higher or Lower
Guess whether the next value is higher or lower.
Fill the Blank
Pick the word that completes the sentence.
Type It
Type the missing word from memory.
Flashcards
Flip through freely and self-test — retire the ones you know, keep the rest in rotation.
Memory Flip
Match the hidden pairs from memory.
Buckets
Group the items that share a category.
Quiz Cards
Multiple-choice trivia from the pack.
True or False
Decide if each statement holds.
Word Scramble
Unscramble the answer to the clue.
Magnitude Stack
Order the values smallest to largest.
Sequence It
Put the steps in the right order.
The Estimator
Drag to estimate, then see how close.
Trivia Bet
Wager on your confidence, then answer.
Sort the Pile
Sort each word into the right bin.
Word Search
Find the hidden words in the grid.
Word Hunter
Type the answer from a clue — green/amber/gray letter feedback, five tries.
Highway Hunt
Steer into the lane with the correct answer.
Role Play
Charlie, Echo & Zebby quiz you in their own voice — keep them happy.
Knowledge Wheel
Spin, guess letters, and solve the term — bank Flash Bucks, dodge the red wedges.
Left Right Match
Tap a term on the left, then its match on the right — clear every pair.
Buy a Clue
Start with one clue and the full payout; buy more clues to narrow it down, but each shrinks the payout.
Right or Wrong
Two takes on the same question — pick the one that's right, then see why the other misses.
Pop Quiz
A rapid-fire multiple-choice sprint — eight questions, no hints.
Lightning Round
Quick-fire trivia — answer before the clock runs out.
Ready to settle in? There's a path for that.
Every pack is split into lessons, 391 across the catalog, and every lesson has a written study guide and a set of objectives. Read a part of the guide, lock it in with a quick quiz on what you just read, then take a short test to check an objective off.
- A study guide for every lesson
- Objectives you can test yourself on
- Installed packs keep their guides on your phone, so they work offline
Misses come back. Streaks pay.
Get a question wrong and it goes to Review. Answer it right twice and it's retired, so you only drill what you actually missed.
You start with 1,000 Flash Bucks and earn 10 for every correct answer, plus a bonus each day you open the app. Wager them in Trivia Bet, Knowledge Wheel and Buy a Clue. They can't be bought.
A daily streak pays a one-time bonus at 3, 7, 14, 30 and 100 days. And with a Time Capsule you can seal a short note to your future self about a pack; it comes back as a card when it's ready to open.