Interest Meter vs Trezzi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interest Meter
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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) - Up-to-date exchange rates, fetched automatically, 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.
Trezzi
Organize and track personal or family deposits with maturity dates, interest rates, and reminders. This privacy-focused tool offers local storage and iCloud backup, without requiring account registration or bank credentials.
- Deposit record management
- Multiple holder support
- Maturity reminders
- Multi-currency support
- Earnings overview
- Local backup and restore
- iCloud backup
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Trezzi is a deposit and fixed savings manager designed to help you organize and track your personal or family deposits more clearly. Manage maturity dates, interest rates, currencies, and reminders in a simple and privacy-focused experience. FEATURES • Deposit record management Track banks, amounts, interest rates, terms, and maturity dates • Multiple holders Support for personal, family, or shared deposit management • Maturity reminders Set multiple reminder schedules to avoid missing maturity dates • Multi-currency support Manage deposits in different currencies • Earnings overview View expected returns and deposit summaries • Export and restore Local backup and restore support • iCloud backup Automatic backup through iCloud PRIVACY FIRST Trezzi does not require account registration. Your deposit data is stored locally on your device by default and remains under your control. The app does not require bank account credentials or online banking access. When iCloud backup is enabled, data is synced only through your personal Apple iCloud account. Trezzi is not a banking, investment, or financial trading service. It is a personal deposit tracking and reminder tool. Privacy Policy: https://static.trezzi.top/privacy Terms of Use: https://static.trezzi.top/terms
Screenshots
Verdict
The clearest difference is ads: Trezzi at none against Interest Meter's shown. On price, update cadence, in-app purchases and device support 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
Both are free to download. Interest Meter sells 1 one-off in-app purchase and Trezzi sells 2 in-app purchases, starting at $3.99 per year. Whichever you choose, the download price is not the number that matters.
Interest Meter ships an update every 4 days, Trezzi weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.
| Parameter | Interest Meter | Trezzi |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (2 ratings) — better |
| Positive reviews | — | 50.0% of reviews |
| Number of ratings | — | 2 — better |
| Update frequency | Every 4 days — better | Weekly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 8 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Fuji Bit Inc. | 一伟 郑 |
In-app purchases
Interest Meter
- Premium$2.99
Trezzi
- Trezzi Pro Annual$3.991 Year
- Trezzi Pro Lifetime$7.99









