Compound Interest Calc + is the best app for quickly calculating compound interest and the future value of investments.

Compound Interest Calc + features:

· a beautifully designed interface
· now available in English, French, and Spanish!
· support for starting principal, interest, duration, inflation and additional deposits
· support for additions to be made at the beginning or end of the period
· daily, weekly, bi-weekly, monthly, bi-monthly, quarterly, semi-annual and annual compound frequency and additions frequency options
· results that include final balance, inflation adjusted, total interest and total additions
· PDF and CSV (Excel or Numbers) export options
· saving of calculations for viewing later
· comparing the results of saved calculations
· a complete amortization schedule
· iPhone and iPad support
· Portrait and landscape support
· iPad split-view support
· haptic feedback support
· drag and drop support

I love feedback! I want this app to work for you. Let me know if you’d like to see any additional features or if something is not quite working correctly. You can submit feedback right from within the app.

What’s New

Version 1.5

Bug fixes

Ratings and Reviews

4.6 out of 5
5 Ratings

5 Ratings

liamdillon ,

Great App

Really love the save feature so I don’t have to recalculate scenarios over and over.

The only criticism is that the export to CSV option currently doesn’t seem to work (iPhone XR user).

Developer Response ,

Thanks for the feedback and for reporting the issue you’re having with exporting to CSV. I’ll look into it and issue an update if necessary.


Adam Fahlman
19 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, French, Spanish

Age Rating
Rated 4+
© Adam Fahlman


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