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Best Onecalc Apps

250+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated August 2026

OneCalc is the household name in onecalc, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Onecalc Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1OneCalc: All-in-one CalculatorOneCalc: All-in-one CalculatorFree4.6★ (5.1K)YesNoSep 2026
2OneCalc+ All-in-one CalculatorOneCalc+ All-in-one Calculator$3.994.7★ (512)NoNoAug 2026
3ClevCalc - CalculatorClevCalc - CalculatorFree4.7★ (13K)YesYesAug 2026
41Calc: One Calculator1Calc: One CalculatorFree—YesYesAug 2026
5CalculatorCalculatorFree3.0★ (8.9K)NoNoSep 2026
6EZ Financial CalculatorsEZ Financial CalculatorsFree4.4★ (51)YesNoAug 2026
7The Best Calculator - Calc ProThe Best Calculator - Calc ProFree4.6★ (4.7K)YesYesAug 2026
8Calculator HD Pro LiteCalculator HD Pro LiteFree4.6★ (51K)YesNoSep 2026

Top Picks for Onecalc

OneCalc: All-in-one Calculator#1

OneCalc: All-in-one Calculator by tasser gyati

Calculates everything. Try it.
Editor's Choice
📊 Productivity
4.6😊(5.1K ratings)
FreeAds
OneCalc: All-in-one Calculator screenshot 1
OneCalc: All-in-one Calculator screenshot 2
OneCalc: All-in-one Calculator screenshot 3
OneCalc: All-in-one Calculator screenshot 4
OneCalc: All-in-one Calculator screenshot 5
OneCalc: All-in-one Calculator screenshot 6

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

What We Love

  • 🚀 Excellent app with many handy extras
  • 👍 Easy to use and one of the daily drivers
  • 👍 Helps with work
  • 👍 Great for calculations and conversions

Room to Improve

  • 🐛 Crashes when using the 'More' section
  • 🐛 Incorrect date duration calculations
  • 🔍 Ads can be intrusive and disrupt calculations
OneCalc+ All-in-one Calculator#2

OneCalc+ All-in-one Calculator by tasser gyati

Calculates everything. No ads.
Strong Contender
📊 Productivity
4.7😊(512 ratings)
$3.99
OneCalc+ All-in-one Calculator screenshot 1
OneCalc+ All-in-one Calculator screenshot 2
OneCalc+ All-in-one Calculator screenshot 3
OneCalc+ All-in-one Calculator screenshot 4

This premium calculator app offers over 40 tools for finance, everyday math, health, construction, and unit conversions. It includes standard, scientific, financial, and specialized calculators, all without ads.

What We Love

  • 🚀 Comprehensive features
  • 👍 Easy to use
  • 🔒 No ads or tracking
  • 💡 Useful unit conversions

Room to Improve

  • 🐛 Ads still appear despite paid version
  • 👎 Underlined buttons are distracting
  • 🐛 Currency converter not up-to-date
ClevCalc - Calculator#3

ClevCalc - Calculator by Cleveni Inc.

All-In-One Calculator
Worth Considering
📊 Productivity
4.7😊(13K ratings)
FreeAdsIn-App Purchases
ClevCalc - Calculator screenshot 1
ClevCalc - Calculator screenshot 2
ClevCalc - Calculator screenshot 3
ClevCalc - Calculator screenshot 4
ClevCalc - Calculator screenshot 5
ClevCalc - Calculator screenshot 6

This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.

What We Love

  • 👍 Easy to use
  • 🚀 Efficient calculations
  • 💡 Versatile features (currency, unit conversions, etc.)
  • 👍 Intuitive interface

Room to Improve

  • 💰 Subscription model too expensive
  • 🔍 Ads can be intrusive
  • 🐛 Occasional UI issues (e.g. ads blocking functionality)

More Onecalc apps to explore

4
1Calc: One Calculator
1Calc: One Calculator
1Calc: One Calculator
Calculator + History, No Ads
Free
📊 Productivity
(0)
5
Calculator
Calculator
Calculator
by Apple
Free

This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.

Basic and scientific calculatorsType or write math expressionsInline equation solving
🔧 Utilities
(8.9K)
free
6
EZ Financial Calculators
EZ Financial Calculators
EZ Financial Calculators
by Bishinew Incorporated
Free

Access a comprehensive suite of financial tools for personal and business use. Calculate loans, mortgages, investments, retirement savings, and more with ease. This app offers a wide range of specialized calculators for detailed financial analysis.

Finance and Investment CalculatorsLoan and Mortgage CalculatorsRetirement Planning Tools
💰 Finance
(51)
ad-supported
7
The Best Calculator - Calc Pro
The Best Calculator - Calc Pro
The Best Calculator - Calc Pro
10 Powerful Calculators
Free

This app offers a comprehensive suite of 10 powerful calculators and 10 financial worksheets, designed to handle everything from basic arithmetic to complex scientific and financial calculations. It includes features like unit conversion, currency exchange, graphing, and statistical analysis, making it a versatile tool for students and professionals.

10 powerful calculators (Standard, Scientific, Graphing, etc.)10 financial worksheets (Mortgage, Loan, Compound Interest, etc.)Unit Converter with 3000+ conversions
🔧 Utilities
(4.7K)
free with in-app purchases
8
Calculator HD Pro Lite
Calculator HD Pro Lite
Calculator HD Pro Lite
Basic & Scientific Calc
Free

This app offers a user-friendly calculator with large buttons and extensive customization options. It features a dual-line display to see input and results simultaneously, saves your calculation history, and provides full scientific functions. Personalize layouts, themes, and even button symbols to suit your needs.

Dual-line displayCalculation historyFull scientific functions
🔧 Utilities
(51K)
ad-supported
9
All-In-One Calculator
All-In-One Calculator
All-In-One Calculator
Calculator
Free

This app offers a comprehensive suite of calculation tools, including regular, scientific, loan, and mortgage calculators. It also features currency and unit converters, percentage and discount calculators, and an age calculator. Designed for ease of use, it simplifies complex financial and everyday calculations.

Scientific calculator with advanced functionsUnit converter for everyday measurementsLoan and mortgage payment calculator
💰 Finance
(3)
free
10
Calculator for iPhone and iPad
Calculator for iPhone and iPad
Calculator for iPhone and iPad
You can count on it
Free

A straightforward and intuitive calculator app designed for ease of use. It offers a history bar, customizable themes, and advanced mathematical functions, ensuring a pleasant and efficient calculation experience on your device.

Basic arithmetic operationsAdvanced scientific functionsHistory bar for past calculations
🔧 Utilities
(15K)
free with in-app purchases
11
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations
🔧 Utilities
(409K)
ad-supported
12
Panecal Scientific Calculator
Panecal Scientific Calculator
Panecal Scientific Calculator
For engineers and students
Free

This app functions as a scientific calculator, enabling users to input and edit complex formulas with ease. It supports formula history, variable memory, and various number system conversions for accurate calculations.

Formula editing with cursor and swipeReuse past formulasVariable memory for calculations
🔧 Utilities
(1.9K)
ad-supported
13
BA Financial Calculator
BA Financial Calculator
BA Financial Calculator
BAII Plus Emulator
Free

Emulates the TI BAII Plus financial calculator, offering identical functionality with a clean and user-friendly interface. It's designed for finance professionals and students preparing for exams like CFA, FRM, and CPA.

TI BAII Plus emulatorIdentical functionalityUser-friendly interface
💰 Finance
(3.3K)
ad-supported
14
All In One Calculator+
All In One Calculator+
All In One Calculator+
Powerful tool for math,finance
Free
🔧 Utilities
(0)
15
Uno Calculator
Uno Calculator
Uno Calculator
by Uno Platform Inc.
Free

This app offers a comprehensive suite of calculation tools, handling everything from basic arithmetic to complex unit conversions. It supports measurements for size, temperature, speed, energy, and currency, making it a versatile solution for diverse needs.

Arithmetic calculationsUnit conversionsSize measurements
📊 Productivity
(113)
free
16
FusionCalc - Calculator App
FusionCalc - Calculator App
FusionCalc - Calculator App
The Better Calculator.
Free
$2.49 | 100% OFF
🔧 Utilities
(0)
17
Sci:Pro Calculator
Sci:Pro Calculator
Sci:Pro Calculator
by Jerry Montgomery
Free

This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.

Multi-mode calculator (Basic, Scientific, Programmer)Calculation historyShare results via email
🔧 Utilities
(3.6K)
free
18
Citizen Calculator App
Citizen Calculator App
Citizen Calculator App
The Calculator: GST Calculator
Free

This app offers a comprehensive calculator with standard arithmetic functions, business-specific calculations like GST, and advanced features. Enjoy a realistic calculator experience with tactile feedback and a clean interface.

GST CalculatorBasic math operationsBusiness and financial functions (M+, M-, MU, GT)
🔧 Utilities
(340)
freemium
19
Formcalc
Formcalc
Formcalc
Formula Calculator
Free
🔧 Utilities
(0)
20
Count: Numerical Computation
Count: Numerical Computation
Count: Numerical Computation
Mathematics & Calculation
Free
📊 Productivity
(0)

FAQ about Onecalc

What are the best onecalc apps for iPhone?
OneCalc: All-in-one Calculator tops our onecalc apps ranking as of August 2026, with a 4.6-star average from 5.1K App Store ratings, and it's free to download.
Yes — 19 of the top onecalc apps we rank are free to download, including OneCalc: All-in-one Calculator and ClevCalc - Calculator.
OneCalc: All-in-one Calculator shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 250+ onecalc apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides a free, ad-supported collection of over 40 specialized calculators and unit converters. It covers a wide range of categories including finance, health, date and time, construction, shopping, and everyday math, making it a versatile tool for various calculation needs.
Key features include a standard calculator with advanced scientific functions, a unit converter for metric/imperial units, financial calculators for loans and savings, health trackers like BMI and calorie calculators, construction material estimators, and date/time duration calculators.