Comparison

Interest Meter vs Trezzi

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

Head to head
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) - 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.

About

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.

Highlights
  • Deposit record management
  • Multiple holder support
  • Maturity reminders
  • Multi-currency support
  • Earnings overview
  • Local backup and restore
  • iCloud backup
Features
Read full description

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

Interest Meter4 screens
Trezzi4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

Interest Meter ships an update every 4 days, Trezzi weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard1 real difference · 9 level
Interest Meter versus Trezzi: the parameters behind the verdict, then further details
ParameterInterest MeterTrezzi
PriceFreeFree
Rating—3.0 (2 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 4 days — betterWeekly
AdsYesNo — better
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details — not scored
Size8 MB21 MB
Age rating4+4+
DeveloperFuji Bit Inc.一伟 郑

In-app purchases

1 purchases

Interest Meter

One-time1
  • Premium$2.99
2 purchases

Trezzi

Subscriptions1
  • Trezzi Pro Annual$3.991 Year
One-time1
  • Trezzi Pro Lifetime$7.99

Questions

Is Interest Meter free?
Interest Meter is free to download, with in-app purchases available.
Is Trezzi free?
Trezzi is free to download, with in-app purchases available.
Do Interest Meter or Trezzi have ads?
Interest Meter shows ads; Trezzi does not.
Which is updated more often, Interest Meter or Trezzi?
Interest Meter ships an update every 4 days, and Trezzi weekly. Most recently, Interest Meter was updated on October 31, 2026 and Trezzi on November 5, 2026.

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