Best Free Investment Calculator Apps

250+ iOS apps curated and reviewed

4.8 avg rating
20 free apps
Updated September 2026

Every iPhone needs a few good free investment calculator apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Free Investment Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Compound Interest CalcCompound Interest CalcFree4.8β˜… (6.5K)YesYesSep 2026
2Investment Calculator - CalcInvestment Calculator - CalcFree4.7β˜… (1.6K)YesYesSep 2026
3CompounderCompounderFree4.8β˜… (3.4K)NoNoSep 2026
4EZ Financial CalculatorsEZ Financial CalculatorsFree4.4β˜… (51)YesNoAug 2026
5Easy Investment CalculatorEasy Investment CalculatorFree5.0β˜… (2)NoNoAug 2026
6Financial Calculator: PercentFinancial Calculator: PercentFree4.7β˜… (15K)NoYesSep 2026
7Vanguard: Save, Invest, RetireVanguard: Save, Invest, RetireFree4.6β˜… (177K)YesNoJul 2026
8Investment Calculator - GrowthInvestment Calculator - GrowthFree was $0.99β€”NoNoMay 2026

Top Picks for Free Investment Calculator

Compound Interest Calc#1

Compound Interest Calc by Dane Hankamer

Plan | Invest | Retire
Editor's Choice
πŸ’° Finance
4.8😊(6.5K 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

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

Room to Improve

  • πŸ› Scaling issues on smaller devices
  • πŸ› Inaccurate calculations in certain scenarios
  • πŸ› Frequent ads disrupting user experience
  • πŸ› Crashing and compatibility issues
  • πŸ› Lack of customization options
Investment Calculator - Calc#2

Investment Calculator - Calc by Phan Nhat Đang

Compound interest, financial
Strong Contender
πŸ’° Finance
4.7😞(1.6K ratings)
FreeAdsIn-App Purchases
Investment Calculator - Calc screenshot 1
Investment Calculator - Calc screenshot 2
Investment Calculator - Calc screenshot 3
Investment Calculator - Calc screenshot 4

Easily assess investment value over time with detailed tables and charts. Includes tools for ROI, duration, and contribution calculations. Save and track your financial journey.

What We Love

  • πŸ‘ User-friendly interface
  • πŸ’‘ Helpful investment calculations

Room to Improve

  • πŸ’° Paywall for basic features
  • πŸ“’ Intrusive ads
  • πŸ› Calculation issues
  • πŸ€” Confusing subscription/unsubscription process
Compounder#3

Compounder by James Bevins

Interest Calculator
Worth Considering
πŸ’° Finance
4.8😊(3.4K ratings)
Free
Compounder screenshot 1
Compounder screenshot 2
Compounder screenshot 3

Calculate the growth of savings and investments using compound interest. Explore how regular contributions and withdrawals impact your financial goals over time. Designed for anyone to understand and utilize the power of compounding for wealth building.

What We Love

  • πŸ‘ Easy to use
  • πŸš€ Instant results
  • πŸ’‘ Helps explain investments
  • πŸš€ Simple and easy to use
  • πŸ‘ Best and easiest compound calculator
  • πŸ‘ Go-to app for compound calculations
  • πŸš€ Makes calculating retirement simple

Room to Improve

  • πŸ› Glitchy and not user-friendly after update
  • πŸ› Can't use quarterly, monthly, or weekly buttons after update
  • πŸ› New version not working well on iPhone
  • πŸ› Can't click off of monthly to quarterly, yearly, or weekly
  • πŸ› Compound frequency stuck on monthly after update
  • πŸ› App crashes after update
  • πŸ› Ads running across the top of the screen

More Free Investment Calculator apps to explore

FAQ about Free Investment Calculator

What are the best free investment calculator apps for iPhone?
Compound Interest Calc tops our free investment calculator apps ranking as of September 2026, with a 4.8-star average from 6.5K App Store ratings, and it's free to download.
Compound Interest Calc shows ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 250+ free investment calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app is a financial planning companion that helps you calculate compound interest for investment growth and plan retirement withdrawals. It provides tools to visualize how your money grows over time with periodic contributions and how long your savings will last when accounting for inflation.
Key features include a Growth Mode to calculate investment growth with periodic contributions and visualize it with interactive charts, and a Withdrawal Mode to plan retirement withdrawals with inflation adjustments and calculate how long savings will last. It also offers detailed year-by-year breakdowns and real-time calculations.