
Understudy: Investing Practice
Stock simulator, no real money
About
What's New in Understudy
1.6.0
October 2, 2026
Understudy now keeps track of what you've practiced, and asks for your call before it explains. PRACTICE THAT FADES, AND COMES BACK • A concept you've proven fades if you haven't used it in a while. Its ring segment turns to Revisit, and one quick question brings it back. • Concept sheets change with what you know: a worked example in numbers first, then the same ticket with the last step blank, then just the rule. • Each cluster in the Concept Library has a guidebook: what ties its concepts together, and one situation worked several ways. YOUR CALL, FIRST • Before you place an order, you can say how sure you are. The outcome screen leads with your call, what happened, and the one line that explains the difference. • Your first market order asks what you'll pay a share before anything else, and shows you once it fills. TODAY'S DECISION, PICKED FOR YOU • Today's two topics now come from what's slipping: never two of the same kind, and never yesterday's kind. Once you've proven a concept, it comes back as a harder version. A PLAN FOR TOMORROW • Session Complete leads with what you did, then ends with one sentence you finish: "Tomorrow, after my coffee, I'll start the Volatile market." The daily reminder, if you turn it on, follows that moment and names what's open. NEW HERE? • Three quick questions come before your numbers. There's no score, and each answer gets a one-line explanation. Everything in Understudy is still practice money, and nothing in it is investment advice.
MoreSubscriptions & In-App Purchases
Understudy Premium Weekly
Full access, billed weekly. Cancel anytime.





