Comparison

Compound Interest App vs Interest Meter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Compound Interest App

Features
Read full description

Compound Interest App - Fast and easy to use compound interest calculator with graphs. FEATURES: - Fast and easy to use compound interest calculator - Adjust deposit interval - Adjust deposit timing - Adjust compound frequency - Handy help guide - Change currency unit in compound interest app - Work offline (no internet required) PRO FEATURES: - Visual graph for viewing growth over time - Personalise graph/chart colors - Ad free - Support development and future updates DISCLAIMER: The calculations provided by Compound Interest App are designed to give a general idea of how compound interest works, but should not be relied upon as the sole basis for any financial decisions.  - EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Terms of Service: https://www.polydez.com/compoundify/ - Privacy Policy: https://www.polydez.com/compoundify/

About

Interest Meter

Features
Read full description

Do you know exactly how much interest your savings are earning? Interest Meter is a clean, precise calculator for bank deposit interest. It supports both simple and compound interest, and automatically deducts withholding tax (default: Japan's 20.315%) so you can see your real take-home earnings. --- Free Features --- - Simple and compound interest calculation - Compound frequency: yearly, semi-annual, monthly, or **custom** (specify any number of compounding events per year — e.g. 4 quarterly, 52 weekly, 365 daily) - Flexible deposit period (1 to 50 years) - See pre-tax and after-tax interest at a glance - Year-by-year breakdown chart - Customizable tax rate (default: 20.315%) - Clean, intuitive design --- Premium Features (one-time purchase) --- - Switch the calculator to any of 9 foreign currencies (USD, EUR, GBP, AUD, CNY, HKD, SGD, KRW, THB) - Live exchange rates with a JPY conversion section in the result view - Ad-free experience across the entire app --- Who Is This For? --- - Anyone checking returns on fixed deposits - People who want to see compound interest in action - Savers who want to know their real after-tax yield - Anyone taking the first step toward smarter money management - Foreign-currency depositors who need quick JPY conversions Simple by design. Check your deposit interest today.

Screenshots

Compound Interest App4 screens
Interest Meter3 screens

Verdict

The call

The clearest difference is ads: Compound Interest App at none against Interest Meter's shown. Interest Meter's advantage is update cadence (every 3 days vs every 8 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price ¡ Rating ¡ Positive reviews ¡ Number of ratings ¡ Update frequency ¡ Ads ¡ In-app purchases ¡ Monetization ¡ Best chart rank ¡ Devices ¡ Requires iOS

CostPrice ¡ In-app purchases ¡ Ads ¡ Monetization

Both are free to download. Compound Interest App sells 3 in-app purchases, starting at $1.99 per month and Interest Meter sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Compound Interest App ships an update every 8 months, Interest Meter every 3 days. The most recent releases landed on September 19, 2026 and September 9, 2026 respectively.

Scorecard2 real differences ¡ 4 level
Compound Interest App versus Interest Meter: the parameters behind the verdict, then further details
ParameterCompound Interest AppInterest Meter
PriceFreeFree
Update frequencyEvery 8 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.416.0 — better
Further details — not scored
Size15 MB6 MB
Age rating4+4+
DeveloperPolydezFuji Bit Inc.

In-app purchases

3 purchases

Compound Interest App

Subscriptions2
  • Compoundify Pro - Monthly Plan$1.991 Month
  • Compoundify Pro - Yearly Plan$4.991 Year
One-time1
  • Compoundify Pro$9.99
1 purchases

Interest Meter

One-time1
  • Premium$2.99

Questions

Is Compound Interest App free?
Compound Interest App is free to download, with in-app purchases available.
Is Interest Meter free?
Interest Meter is free to download, with in-app purchases available.
Do Compound Interest App or Interest Meter have ads?
Interest Meter shows ads; Compound Interest App does not.
Which is updated more often, Compound Interest App or Interest Meter?
Compound Interest App ships an update every 8 months, and Interest Meter every 3 days. Most recently, Compound Interest App was updated on September 19, 2026 and Interest Meter on September 9, 2026.

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