A compound interest calculator, very easy to use! Compute compound interest with variable additions, frequency and duration.

Use it to double check holdback payments / insurances or to create your amortization schedule. Export the results in other apps or visualize it in the app.

What’s New

Version 2.0

This app has been updated by Apple to display the Apple Watch app icon.

Ratings and Reviews

4.8 out of 5
90 Ratings

90 Ratings

wynndogg ,

The rule of 72! With extras

It’s hard to get people to start investing one of the best ways is to explain the rule of 72 were. if you take 72 divided by the interest rate that will tell you how long the doubling time will be. e.g. 12% interest with $10,000= 72/12 =6 years later you’ll have $20,000. If you put $10,000 when your kid is born then they have 3 doubling periods or $80,000. Now this does that plus it adds the additional money that you can add for mind blowing totals that make you wanna act. So if you did the same 10k plus added another $100 a month you’d deposit a total of $21,600 and gain ~$116,000 for a total of ~$148,000 which would be something when the kid is thinking about going to school. Get the app, do the math, and get a stash account and get invested today!!!

Chanley865 ,

Great tool to visualize portfolio possibilities

It’s interesting to see how much saving an additional 1% or 2% can change over many years of compound interest. I recommend this kind of tool regularly & have told several people about this app.

erharuspex ,

Great Calculator

This is the best compound interest calculator I’ve found on the store. I like the fact that they let you calculate in monthly intervals. Sure, there’s other calculators that “look” better, but as far as functionality, this one is as good as it gets.

App Privacy

The developer, digitalsirup GmbH, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

Health & Fitness
Health & Fitness

You Might Also Like