Interest Meter
Deposit interest calculator
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
How much is your deposit really earning? Calculate simple and compound interest with after-tax amounts instantly. Premium adds 9 currencies and removes ads.
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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- 9-language support: Japanese, English, Simplified Chinese, Traditional Chinese, Korean, Spanish, Portuguese (Brazil), German, French
- Refreshed background artwork with a translucent overlay for better readability and a stronger brand feel
- Hardcoded strings extracted to localization resources so every language renders correctly
The developer, Fuji Bit Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Fuji Bit Inc.
- Size
- 6.3 MB
- Category
- Finance
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 8 more
- English, French, German, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Premium $2.99
- Copyright
- © 2026 Fuji Bit