Compound interest for kids
Show compound interest before it becomes a textbook formula.
Tiny Treasury lets parents set an APR for a child treasury so growth becomes something kids can see in their own savings record.

Highlights
- Parent-set APR for educational tracking
- Daily compounding shown in the ledger
- Growth connected to a child's real savings goal
- Clear reminder that Tiny Treasury is not a bank or adviser
Step 01
Turn patience into a visible result
Compound interest can feel fake to a kid until it touches a balance they care about. Tiny Treasury connects the idea to a child's own treasury, so waiting has a number attached to it.
Parents choose whether to use interest at all and what APR makes sense for the lesson they want to teach.
Step 02
Use interest as a family teaching tool
This is not investment advice and it is not a bank yield. It is a way to explain why saved money can grow, why small amounts matter, and why spending everything immediately has a tradeoff.
- Start with a modest APR so the result feels believable.
- Review the ledger after a few weeks instead of every day.
- Connect interest to a real goal, not just a number.
Step 03
Keep the explanation honest
The app makes the math visible, but the parent owns the context. If the APR is a family reward, say that. If it mirrors a real savings account, say that. The clarity matters more than the rate.
FAQ
Common questions
Does Tiny Treasury pay interest?
No. It calculates a displayed ledger value based on the APR a parent sets. Parents handle any real-world money.
Can I set the APR to zero?
Yes. You can use Tiny Treasury as a plain savings ledger without interest.
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