Mastering the World of Crypto
Like Duolingo, but for Mastering the World of Crypto. 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.
Free forever · No credit card · iPhone & Android

Key ideas in Mastering the World of Crypto
- Coins exist as records on the public blockchain
- The wallet only stores the keys to access those records
- Public addresses are safe to share
- Understanding the actual location of crypto assets
- Private keys must never be shared
- Seed phrases can regenerate keys
- Distinguishing between public addresses and private keys
- Assets remain on the blockchain regardless of the app status
- Access can be restored on a new device using a seed phrase
- Cold storage (hardware wallets) is safer for large, long-term holdings
- Offline keys are immune to online hacking attempts
- Self-custody wallets allow direct interaction with DeFi apps
- Exchanges can freeze your account; self-custody wallets cannot
- Understanding the consequences of deleting a wallet app
- Seed phrases must be recorded offline
- Identifying the benefits of self-custody over exchange accounts
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 Mastering the World of Crypto 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.
If the coins stay on the blockchain, what exactly is your wallet app storing for you?
Get it right to open this lesson and 95 more in the app.
Where Mastering the World of Crypto takes you
Go from curious beginner to confident digital financier. Learn to manage your own assets, explore the decentralized web, and understand the technology rewriting the rules of money.
- 1
Your First Digital Wallet
- Setting up your first crypto wallet
- How to send and receive your first coins
- Keeping your secret recovery phrase safe
- Connecting your wallet to the Brave browser
- Spotting and avoiding common wallet scams
- 2
Using Crypto in Daily Life
- Why people use USDC and stablecoins
- Buying your first NFT for fun or utility
- Earning rewards while browsing the web
- How to swap one coin for another
- 3
Exploring the New Internet
- What makes Web3 different from the old web
- Using apps that no one person owns
- Joining a digital club or DAO
- How digital identity works without passwords
- The role of crypto in gaming and social media
- Real-world examples of decentralized services
- 4
Becoming Your Own Bank
- The basics of Decentralized Finance (DeFi)
- How to earn interest on your digital dollars
- Borrowing and lending without a bank manager
- Understanding the risks of high-yield crypto
- 5
How the Engine Works
- The simple logic of the blockchain
- How computers agree on who owns what
- What 'mining' and 'staking' actually mean
- The difference between Bitcoin and Ethereum
- Why blockchain is nearly impossible to hack
5 sections · 24 units · 96 levels. Built to play, not to enroll.
You pick the voice
Mastering the World of Crypto is taught in the The Storyteller style: every lesson is a story. 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 Mastering the World of Crypto today.
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