Compound interest for kids

Compound interest becomes real for kids when it happens to money they care about. Bank of Papa turns the idea into a daily family ritual.

The parent records real savings and chooses an annual rate. Each day, the app adds interest to the balance, then tomorrow's interest is calculated on the new balance. Kids do not need the formula first. They can see the curve.

A simple example

A child saves $100. At 10% annual interest, it earns a little more than two cents the first day. That sounds small, but it is powerful when a child checks and sees that the money changed while they slept.

Make growth visible

Use real deposits: birthday money, allowance, gifts, or red envelopes.
Set a rate high enough that small balances visibly change.
Check together regularly, not constantly.
Keep the focus on saving as the reward.

Keep it honest

Bank of Papa is not a bank account. It is a savings simulator and family ledger. The parent decides the rate and pays the interest when money leaves the family bank.

Open Bank of Papa