Investing in Stocks
Like Duolingo, but for Investing in Stocks. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
21 levels across 3 sections, about 42 minutes end to end, roughly 8 days at five minutes a day. It moves through Your First Investment, How to Make Money, and Investing Like a Pro. It starts from scratch.
Free forever · No credit card · iPhone & Android

Key ideas in Investing in Stocks
- Fractional shares let you buy a portion of a single stock based on a dollar amount
- Reinvested earnings increase the total amount of money working for you
- You do not need to save up the full price of a share to start owning the company
- Growth happens on top of previous growth, creating a snowball effect
- Dividends and gains are paid out proportionally to your fraction of the share
- Time is the most important factor in allowing compounding to accelerate
- Fractional shares
- Compounding
- Modern apps allow you to start with as little as $1
- How to invest in a high-priced stock with limited funds
- Commission fees used to make $5 or $10 investments mathematically impossible
- Digital platforms have democratized access to the same stocks professionals buy
- Regular small buys lower the average price you pay for stocks over time
- The mechanism of compounding in a stock portfolio
- Waiting for the 'perfect' price often results in missing out on months of growth
- Consistency removes the emotional stress of trying to predict stock price swings
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Investing in Stocks the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
What happens when you reinvest the earnings your stocks generate?
Get it right to open this lesson and 20 more in the app.
Where Investing in Stocks takes you
Learn how to grow your wealth by owning pieces of the world's most successful companies, even if you're starting with just a few dollars.
- 1
Your First Investment
- Starting on a Budget
- The Easiest Way to Own Everything
- 2
How to Make Money
- The Two Paths to Profit
- Spotting Quality Companies
- 3
Investing Like a Pro
- Building a Balanced Portfolio
- Mastering Market Cycles
- Protecting Your Gains
3 sections · 7 units · 21 levels. Built to play, not to enroll.
You pick the voice
Investing in Stocks is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start Investing in Stocks today.
Download Tomo, search Investing in Stocks, and play your first lesson in under a minute.