Best Interest Rate Calculator Apps

249+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated October 2026

If you already know Loan Calculator‰, this is the deeper bench. 249+ interest rate calculator apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Interest Rate Calculator Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Loan Calculator‰Loan Calculator‰Free4.9★ (106K)YesNoNov 2026
2Interest Rate CalculationInterest Rate CalculationFree4.7★ (6)YesNoOct 2026
3Compound Interest CalcCompound Interest CalcFree4.8★ (6.7K)YesYesOct 2026
4Loan Calculator - Debt PlannerLoan Calculator - Debt PlannerFree4.6★ (23K)YesYesNov 2026
5Loan Calculator - Loan2MeLoan Calculator - Loan2MeFree4.8★ (8.2K)NoYesOct 2026
6Interest Calculator (deposits)Interest Calculator (deposits)Free4.7★ (39)YesNoNov 2026
7Interest Rate CalculateInterest Rate CalculateFree—NoNoMay 2026
8RECalc Mortgage CalculatorRECalc Mortgage CalculatorFree4.7★ (2.8K)YesNoNov 2026

Top Picks for Interest Rate Calculator

Loan Calculator‰#1

Loan Calculator‰ by Tim O's Studios, LLC

Simple Loan Calculator
Editor's Choice
💰 Finance
4.9😊(106K ratings)
FreeAds
Loan Calculator‰ screenshot 1

Easily calculate loan or mortgage payments. Simply input the loan amount, repayment term, and interest rate to get your estimated monthly payment.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Straightforward and intuitive
  • 💡 Accurate loan repayment calculations
  • 🚀 Instant results
  • 👍 Helpful for financial decisions

Room to Improve

  • 🐛 Incorrect interest calculations
  • 🔍 Limited functionality
  • 💸 Excessive advertisements
  • 🔍 Cannot switch to landscape mode
  • 🔒 Privacy concerns with data collection
Interest Rate Calculation#2

Interest Rate Calculation by CHING FENG HSU

Helping you easy to calculate
Strong Contender
🔧 Utilities
4.7(6 ratings)
FreeAds
Interest Rate Calculation screenshot 1
Interest Rate Calculation screenshot 2
Interest Rate Calculation screenshot 3
Interest Rate Calculation screenshot 4
Interest Rate Calculation screenshot 5
Interest Rate Calculation screenshot 6

Easily calculate various interest rates, including single, compound, and loan scenarios. Visualize your calculations with chart views. Supports home and car loan simulations, as well as interest income projections.

Compound Interest Calc#3

Compound Interest Calc by Dane Hankamer

Plan | Invest | Retire
Worth Considering
💰 Finance
4.8😊(6.7K ratings)
FreeAdsIn-App Purchases
Compound Interest Calc screenshot 1
Compound Interest Calc screenshot 2
Compound Interest Calc screenshot 3
Compound Interest Calc screenshot 4
Compound Interest Calc screenshot 5

Plan your financial future with a powerful compound interest calculator. It helps you visualize investment growth with periodic contributions and plan retirement withdrawals with inflation adjustments. Offers detailed breakdowns and interactive charts for informed financial decisions.

What We Love

  • 🚀 Easy to use
  • 🚀 Visually appealing
  • 🚀 Helpful for financial planning
  • 🚀 Powerful compound interest calculations
  • 🚀 Intuitive interface
  • 🚀 Useful for retirement planning
  • 🚀 Great visualization of investment growth

Room to Improve

  • 🐛 Scaling issues on smaller devices
  • 🐛 Inaccurate calculations in certain scenarios
  • 🐛 Frequent ads disrupting user experience
  • 🐛 Crashing and compatibility issues
  • 🐛 Lack of customization options

More Interest Rate Calculator apps to explore

FAQ about Interest Rate Calculator

What are the best interest rate calculator apps for iPhone?
Loan Calculator‰ tops our interest rate calculator apps ranking as of October 2026, with a 4.9-star average from 106K App Store ratings, and it's free to download.
Yes — 20 of the top interest rate calculator apps we rank are free to download, including Loan Calculator‰ and Interest Rate Calculation.
Loan Calculator‰ shows ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 249+ interest rate calculator apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.