Best Qtc Calc Apps

224+ iOS apps curated and reviewed

4.6 avg rating
17 free apps
Updated June 2026

Finding the right qtc calc apps can be overwhelming with so many options. We've analyzed 224+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Qtc Calc Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1QTc CalcQTc CalcFreeβ€”NoNoMay 2026
2CalculatorCalculatorFree4.5β˜… (146K)YesYesAug 2026
3MDCalc Medical CalculatorMDCalc Medical CalculatorFree4.9β˜… (52K)NoNoAug 2026
4QTc-CalculatorQTc-CalculatorFree4.7β˜… (51)NoNoAug 2026
5Calculator - Free CalculatorCalculator - Free CalculatorFree4.2β˜… (1.4K)NoNoJul 2026
6BMI Calculator‰BMI Calculator‰Free4.9β˜… (24K)YesNoAug 2026
7epocrates: Drug Info & Pill IDepocrates: Drug Info & Pill IDFree4.4β˜… (7.1K)YesYesAug 2026
8Calculator HD++Calculator HD++Free4.4β˜… (268)YesNoJul 2026

Top Picks for Qtc Calc

Calculator#2

Calculator by The App Tower Inc.

Strong Contender
πŸ”§ Utilities
4.5😐(146K ratings)
FreeAdsIn-App Purchases
Calculator screenshot 1
Calculator screenshot 2
Calculator screenshot 3
Calculator screenshot 4
Calculator screenshot 5
Calculator screenshot 6

This utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.

What We Love

  • πŸ‘ Easy to use
  • 🎨 Customizable backgrounds
  • πŸ’― Accurate calculations
  • πŸ†’ Unique design

Room to Improve

  • πŸ’Έ Ads disrupt usage
  • πŸ”’ Requires payment to remove ads
  • πŸ”€ Cannot rotate to landscape mode
MDCalc Medical Calculator#3

MDCalc Medical Calculator by MD Aware, LLC

Clinical Decision Support
Worth Considering
πŸ₯ Medical
4.9😊(52K ratings)
Free
MDCalc Medical Calculator screenshot 1
MDCalc Medical Calculator screenshot 2
MDCalc Medical Calculator screenshot 3
MDCalc Medical Calculator screenshot 4
MDCalc Medical Calculator screenshot 5

This app provides over 900 evidence-based medical calculators, risk scores, and clinical tools for healthcare professionals. It offers offline functionality, expert insights, and CME tracking to support patient care at the bedside. Tools are developed and validated by board-certified physicians.

What We Love

  • ⭐ Excellent resource
  • πŸ” Helpful and accurate
  • πŸ”₯ Essential for clinical practice
  • πŸ€– Useful for medical students and residents

Room to Improve

  • πŸ› Crashes and bugs after updates
  • πŸ”’ Mandatory login/registration issues
  • πŸ“± Poor user experience on mobile devices

More Qtc Calc apps to explore

4
QTc-Calculator
QTc-Calculator
QTc-Calculator
ECG calculator
Free

This medical app calculates QTc using nine different formulas. It allows users to input heart rate or RR interval and QT interval length for quick results. An Apple Watch app is also included for convenient access.

Nine QTc calculation formulasInput heart rate or RR intervalInput QT interval length
πŸ₯ Medical
(51)
free
5
Calculator - Free Calculator
Calculator - Free Calculator
Calculator - Free Calculator
by η₯₯η₯Ž 刘
Free

A straightforward and reliable calculator application designed for iPad and iOS 9. It offers a standard calculation experience with a charming piano sound effect and is optimized for high-resolution screens.

Standard calculator functionalityOptimized for iPad & iOS 9High-resolution screen optimization
πŸ”§ Utilities
(1.4K)
free
6
BMI Calculator‰
BMI Calculator‰
BMI Calculator‰
Body Mass Index Calculator
Free

Easily calculate your Body Mass Index (BMI) with this straightforward application. It provides a quick way to understand your weight status based on your height and weight.

BMI calculationInput heightInput weight
πŸ’ͺ Health & Fitness
(24K)
ad-supported
7
epocrates: Drug Info & Pill ID
epocrates: Drug Info & Pill ID
epocrates: Drug Info & Pill ID
Dosing, Interactions, & Labs
Free

This clinical reference app empowers healthcare professionals to make safer, faster decisions. It offers comprehensive drug information, interaction checks, pill identification, lab values, and dosing calculators. Access essential clinical tools offline to enhance patient care and workflow efficiency.

Comprehensive Drug ReferenceDrug Interaction CheckerPill Identifier
πŸ₯ Medical
(7.1K)
free with in-app purchases
8
Calculator HD++
Calculator HD++
Calculator HD++
by smalltech sarl
Free

This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.

High precision calculation engineResults displayed while typingMultiple undo functionality
πŸ”§ Utilities
(268)
ad-supported
9
Basic Calculator+
Basic Calculator+
Basic Calculator+
Basic Four Function Calculator
Free

Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.

Basic four functionsClear displayLarge buttons
πŸ”§ Utilities
(243K)
free with in-app purchases
10
Calculator 3.0
Calculator 3.0
Calculator 3.0
Calculations Simplified
Free

A free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.

Customizable themesScientific calculatorUnit converter
πŸ”§ Utilities
(3.5K)
free
11
Calculate by QxMD
Calculate by QxMD
Calculate by QxMD
Medical Calculator
Free

This clinical calculator and decision support tool offers over 200 medical calculators and tools for diagnosis, treatment, and prognosis. It adapts to your practice and provides detailed references, integrating with PubMed and Read by QxMD.

Over 200 medical calculatorsClinical decision support toolsCardiology, internal medicine, and more
πŸ₯ Medical
(5.1K)
free with in-app purchases
12
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Basic & Scientific CalculatorLive Currency ConverterHistory Tape
πŸ”§ Utilities
(358K)
free with in-app purchases
13
Calculator HD Pro
Calculator HD Pro
Calculator HD Pro
Basic & Scientific Calc
$9.99

This app offers a powerful and customizable calculator experience with a dual-line display for seeing input and results simultaneously. Save and organize your calculations with history, labeling, and email options. Personalize layouts, themes, and fonts for a comfortable and efficient user experience.

Dual-line displayMulti-line inputCalculation history
πŸ”§ Utilities
(11K)
free with in-app purchases
14
Calculator for iPadβ‚Š
Calculator for iPadβ‚Š
Calculator for iPadβ‚Š
Basic, Scientific, Plus Calc
Free

This app offers both basic and advanced scientific calculations with an intuitive interface designed for tablets and phones. It includes features like currency conversion, calculation history, and the ability to share results. An optional premium membership removes ads and provides enhanced support.

Basic & Scientific CalculatorAdvanced Scientific FunctionsLive Currency Converter
πŸ”§ Utilities
(126K)
free with in-app purchases
15
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
πŸ”§ Utilities
(3.6K)
free
16
Color Calculator-smart&cute
Color Calculator-smart&cute
Color Calculator-smart&cute
Cute calculator app with theme
Free

This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.

60+ free cute and colorful themesExclusive dynamic and special themesScientific & Standard calculator modes
πŸ”§ Utilities
(15K)
freemium
17
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Big Button Calculator Pro Lite
Easy Basic Calculator
Free

A user-friendly calculator app featuring large buttons and customizable colorful backgrounds. It offers a dual-line display, multi-line input for complex equations, and convenient gesture controls for editing and copying.

Large buttonsDual-line display18 color themes
πŸ”§ Utilities
(13K)
ad-supported
18
UpToDate
UpToDate
UpToDate
by UpToDate
Free

This clinical decision support tool provides healthcare professionals with evidence-based guidance to improve patient care. It features AI-powered conversational answers, continuously updated medical content, and tools for drug reference, calculations, and patient education.

Expert AI conversational guidanceGold standard clinical contentPractice-changing updates
πŸ₯ Medical
(573)
subscription
19
EP QTc
EP QTc
EP QTc
Ultimate QTc calculator
$0.99

This medical app provides over 30 formulas for calculating corrected and predicted QT intervals (QTc and QTp). It includes details on each formula, reference links, statistical analysis, and graphing of results. Definitions of normal and abnormal QTc intervals are also provided.

Over 30 QTc and QTp calculation formulasDetailed formula information and referencesStatistical analysis of results
πŸ₯ Medical
(1)
paid
20
WolframAlpha Classic
WolframAlpha Classic
WolframAlpha Classic
by Wolfram Group LLC
$2.99

Access a vast computational knowledge engine to get instant expert answers and perform complex calculations across thousands of domains. Explore data, solve problems, and gain insights on topics ranging from finance and nutrition to trivia and weather.

Instant expert knowledgeComplex computationsData analysis and reports
πŸ” Reference
(1.3K)
free with in-app purchases

FAQ about Qtc Calc

Are there free qtc calc apps for iPhone?
Yes β€” 17 of the top qtc calc apps we rank are free to download, including QTc Calc and Calculator.
QTc Calc has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 224+ qtc calc apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.

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