Best Decimal Calculator Apps

250+ iOS apps curated and reviewed

4.6 avg rating
17 free apps
Updated July 2026

Finding the right decimal calculator apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Decimal Calculator Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Fraction Calculator Plus #1Fraction Calculator Plus #1Free4.9★ (22K)YesYesSep 2026
2Fraction Calculator + DecimalsFraction Calculator + DecimalsFree3.7★ (293)NoYesJul 2026
3Desmos Scientific CalculatorDesmos Scientific CalculatorFree4.3★ (332)NoNoSep 2026
4Desmos Graphing CalculatorDesmos Graphing CalculatorFree4.3★ (1.3K)NoNoSep 2026
5Calculator #Calculator #Free4.6★ (36K)YesYesSep 2026
6Fraction Calculator-Decimal RAFraction Calculator-Decimal RAFree4.1★ (13)YesNoSep 2026
7Calculator‰Calculator‰Free4.9★ (409K)YesNoSep 2026
8ClevCalc - CalculatorClevCalc - CalculatorFree4.7★ (13K)YesYesSep 2026

Top Picks for Decimal Calculator

Fraction Calculator Plus #1#1

Fraction Calculator Plus #1 by DigitAlchemy LLC

Decimal Converter,Construction
Editor's Choice
📊 Productivity
4.9😊(22K ratings)
FreeAdsIn-App Purchases
Fraction Calculator Plus #1 screenshot 1
Fraction Calculator Plus #1 screenshot 2
Fraction Calculator Plus #1 screenshot 3
Fraction Calculator Plus #1 screenshot 4
Fraction Calculator Plus #1 screenshot 5
Fraction Calculator Plus #1 screenshot 6

Easily perform fraction calculations including addition, subtraction, multiplication, and division. Convert fractions to decimals and vice versa with a clear, user-friendly interface. Ideal for students, cooks, and DIYers needing quick and accurate fraction management.

What We Love

  • 👍 Simple, easy to use
  • 👍 Super app
  • 👍 Awesome calculator
  • 👍 Intuitive design
  • 👍 Easy to use and does everything needed
  • 👍 Convenient and easy to use
  • 👍 Essential for woodworking and carpentry
  • 👍 Helps with fractions and measurements
  • 👍 Saves time and ensures accuracy

Room to Improve

  • 🐛 Intrusive ads
  • 🐛 Subscription required for pro features
3.7😐(293 ratings)
FreeIn-App Purchases
Fraction Calculator + Decimals screenshot 1
Fraction Calculator + Decimals screenshot 2
Fraction Calculator + Decimals screenshot 3
Fraction Calculator + Decimals screenshot 4
Fraction Calculator + Decimals screenshot 5

This app simplifies fraction calculations, offering conversions between fractions and decimals. It supports various fraction types and includes visual learning resources for homework help. Unlock advanced features through in-app purchases or a subscription.

What We Love

  • 👍 Easy to use and intuitive interface
  • 🚀 Fast and efficient calculations
  • 📐 Excellent for fraction conversions and calculations
  • 💼 Useful for professional work (woodworking, DIY, construction, electrical)
  • 📚 Helpful for homework and educational purposes
  • 🎨 Clean, familiar design resembling stock calculator
  • ⚡ Lightweight and minimal storage requirements
  • 🔢 Supports mixed numbers (e.g., 3 ¾) elegantly

Room to Improve

  • 💰 Misleading free-to-paid model with paywall for main features
  • 🔒 Subscription issues and locked features despite payment
  • 🔊 Disables music and media when app is opened
  • 📵 Sound effects cannot be fully muted
  • 🐛 Calculation errors on basic operations
  • ❌ Decimal-to-fraction conversion requires paid upgrade
  • 📱 Portrait orientation only, no landscape support
  • 🤔 Poor user interface intuitiveness for some users
  • ⚠️ Unresponsive customer support
4.3(332 ratings)
Free
Desmos Scientific Calculator screenshot 1
Desmos Scientific Calculator screenshot 2
Desmos Scientific Calculator screenshot 3

This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.

More Decimal Calculator apps to explore

FAQ about Decimal Calculator

What are the best decimal calculator apps for iPhone?
Fraction Calculator Plus #1 tops our decimal calculator apps ranking as of July 2026, with a 4.9-star average from 22K App Store ratings, and it's free to download.
Yes — 17 of the top decimal calculator apps we rank are free to download, including Fraction Calculator Plus #1 and Fraction Calculator + Decimals.
Fraction Calculator Plus #1 shows ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 250+ decimal calculator apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Fraction Calculator Plus is a mobile application designed to help users perform various fraction calculations. It allows for addition, subtraction, multiplication, and division of fractions. It also offers easy conversion between fractions and decimal numbers.
Key features include the ability to perform all four basic arithmetic operations on fractions, automatic simplification of fractions to their lowest terms, and a clear, large display with big buttons for easy input. It also displays results as both fractions and decimal numbers.

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