Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Rates & Tips
A conversion and tip calculator that shows amounts, exchange rates, tips, and people as big HUD numbers on one screen.
Cost & Margin Calculator
Enter ingredient costs, work time, fees and target margin to see a recommended price worked back from the selling price, plus the profit left over.
Loan Interest and Term
Stretch the loan term to see the trade-off between the monthly payment and total interest, and find when the debt is actually cut in half.
Credit Score
Adjust credit utilization and missed payments to see how slowly a credit score climbs and how fast it falls.
Insurance and Risk Pooling
Adjust accident odds, loss size and the number of people pooling to see that insurance shrinks the worst case, not the average.
Progressive Tax
Raise your income to see tax charged step by step, and find why the rate on your last coin differs from the average rate on all of it.
Exchange Rates
Move the exchange rate and the amount of won to see how many dollars you get, and why a rising rate means a weaker won.
Inflation and Real Interest
Adjust the interest rate and inflation to see where the balance on the statement parts ways with what it can actually buy.
Compound Interest
Move principal, rate and time to see where compound interest pulls away from simple interest, and test the Rule of 72.