Principles of Economics
Where everyone starts. Tradeoffs, incentives, markets, prices, GDP, inflation — the whole foundation, micro and macro.
Five courses. 912 lessons. In four languages. From your first supply curve to game theory, expectations and the open economy — each lesson teaches you the idea first, then checks that it stuck.
✓ Every course free ✓ No account to start ✓ English, Armenian, Spanish & Russian
You can't be quizzed into understanding. So every lesson teaches first — about a dozen cards that build the idea, and only then the questions that check it held. Four minutes to learn, three to be sure. This is a real lesson; click through it.
Five courses that run from first principles to intermediate theory — the same ground a university sequence covers, cut into pieces you can finish on a bus.
Where everyone starts. Tradeoffs, incentives, markets, prices, GDP, inflation — the whole foundation, micro and macro.
Choice, demand, exchange, production, monopoly, game theory, welfare. Intermediate level, no hand-waving.
Goods and financial markets, the labour market, growth, expectations, the open economy, and the policy levers that move them.
Money psychology, banking, credit, debt, investing, taxes, property — the economics you actually use on a Tuesday.
Kahneman, Tversky, Thaler, Ariely. Why real people don't behave the way the models say they will.
Every course, every lesson. Nothing behind the paywall but the friction.
Set a goal in minutes. Every day you keep it banks credit, credit buys a freeze, and a freeze covers exactly one day you miss. None of it is for sale — Pro holds one more freeze than free, never a longer streak.
Five minutes to sixty, set by you, and locked when the day starts. Move it today and it counts from tomorrow — a promise you can edit at eleven at night isn't one.
A day you meet your goal banks commitment points, and a bigger promise pays disproportionately: a five-minute day is worth one point, a thirty-minute day is worth eight. Ten points buys a streak freeze. Points only land on days you actually finish a lesson, so an unrealistic goal pays nothing at all.
One missed day, absorbed, and the count carries on. Hold a goal of twenty minutes or more and keep it on seven of every ten days you show up, and you earn a second slot outright. Free holds one, or two once you've earned it. It also comes back on its own every seven days you study.
A streak worth losing gets a plan instead of a pardon: one to three lessons, depending on how long it was, before midnight tomorrow. A record of keeping your goals takes a lesson off the price. Nothing restores a streak for money — one that could be bought would stop measuring anything.
Dr. Economisto speaks all four. Every lesson, every card, every diagram and all 526 dictionary terms exist in English, Armenian, Spanish and Russian — switch whenever you like. Nothing here is a partial translation.
Russian is new in 2.0: all 912 lessons and all 526 terms, checked by a Russian-speaking economist before it shipped.
The parts you don't think about until you'd miss them.
Every term the courses use, defined, each with an example. The search forgives you: type elasticty and you still get Elasticity. Save the ones that won't stick.
Accuracy, pace, and how much of today's goal you just did. The speed bonus only pays on a flawless run — hurrying through is never worth anything.
Home Screen or Lock Screen: the streak, today's minutes against your goal, and after six in the evening, “41-day streak ends tonight.” So you can't claim you forgot. Needs iOS 17; the app itself runs on iOS 16.
Awarded the moment you earn them, on the results screen — not discovered three weeks later in a menu. They show on your public profile.
Mistakes cost something, which is the only reason attention is real. They refill in fifteen minutes. A missed question comes back as a quick review before the lesson ends, and review is free — no hearts, no score.
There always is, on every board — against everyone or just your friends, and it turns out that's usually enough to open the app. Follow people, keep a public profile, and block, report or remove a follower without asking anyone.
Finish a unit and a real PDF lands in your inbox. Small thing. Surprisingly motivating.
Your study calendar, stars by course, and how you do on the hard ones versus the easy ones. The full ledger is part of Pro.
Pro removes the friction. There is no locked course, no locked unit, no locked language and no lesson you can't reach — and it cannot buy you a streak.
No account required to start
Monthly or yearly — prices shown in the app
Free on iPhone and iPad. No account needed to begin — try a lesson first, decide after.
Download on theApp Store
Economics is a big subject and we get things wrong sometimes. Tell us and we'll fix it — corrections go straight into the next content pass.