Best Opsplan Lct50 Calculator Apps

221+ iOS apps curated and reviewed

4.6 avg rating
14 free apps
Updated May 2026

Finding the right opsplan lct50 calculator app can be overwhelming with so many options. We've analyzed 221+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Opsplan Lct50 Calculator

Calculator +#2

Calculator + by Sarah Ragab

Scientific Calc Plus Fraction
Strong Contender
🔧 Utilities
4.6😊(9.6K ratings)
FreeAdsIn-App Purchases
Calculator + screenshot 1

This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.

What We Love

  • 👍 Great features and easy to use
  • 👍 Efficient and quick
  • 👍 Versatile, functional calculator
  • 👍 Fantastic, easy to use app

Room to Improve

  • 🐛 New updated layout is awful
  • 🐛 App is now terrible
  • 🔒 Paying customer screwed over by update
Calculator ∞#3

Calculator ∞ by Incpt.Mobis

The Best Scientific Calculator
Worth Considering
📚 Education
4.7(6.2K ratings)
$5.99In-App Purchases
Calculator ∞ screenshot 1
Calculator ∞ screenshot 2
Calculator ∞ screenshot 3
Calculator ∞ screenshot 4
Calculator ∞ screenshot 5
Calculator ∞ screenshot 6

This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.

More Opsplan Lct50 Calculator apps to explore

4
PCalc Lite
PCalc Lite
PCalc Lite
The Best Calculator
Free

This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.

Optional RPN modeMultiple undo and redoUnit conversions and constants
🔧 Utilities
(213)
free with in-app purchases
5
GraphNCalc83
GraphNCalc83
GraphNCalc83
Graphing calculator
$12.99

This app offers a powerful graphing calculator experience with touch-based input for enhanced interaction. It supports natural textbook notation, advanced math functions, and various plotting capabilities. Users can also utilize its programming features and built-in tools like unit conversion and a periodic table.

Touch-based graphing and editingNatural textbook notation inputAdvanced math and statistical functions
📚 Education
(3.8K)
paid
6
Artillery Calculator
Artillery Calculator
Artillery Calculator
Calculator for Hell Let Loose
Free

This tool helps players of a specific war simulation game achieve precise artillery targeting. It calculates the necessary elevation for artillery rounds based on target distance, ensuring accurate strikes against enemies.

Pinpoint artillery accuracyTarget sighting assistanceDistance to target input
🔍 Reference
(41)
free
7
Military Money: Pay & Pension
Military Money: Pay & Pension
Military Money: Pay & Pension
VA, TSP, BAH, taxes and more!
$0.99

This app helps U.S. military personnel forecast and plan their finances. Calculate current pay, project future earnings, and plan for retirement with detailed projections for various pay scenarios, benefits, and retirement systems.

Current pay calculationRetirement system projectionCareer progression analysis
💰 Finance
(5.7K)
free
8
Orenda
Orenda
Orenda
Pool Calculator and Education
Free

This app helps you master pool chemistry by accurately calculating chemical dosages and balancing water based on the LSI. It offers a user-friendly experience for both novices and professionals, including a volume estimator and educational videos.

Chemical dosing calculatorLSI water balancingPool volume estimator
📊 Productivity
(452)
free
9
MDCalc Medical Calculator
MDCalc Medical Calculator
MDCalc Medical Calculator
Clinical Decision Support
Free

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.

900+ evidence-based calculatorsOffline functionalityExpert insights and commentary
🏥 Medical
(51K)
free
10
AFT Score Calculator
AFT Score Calculator
AFT Score Calculator
by Brian Savidge
Free

Calculate your Army Fitness Test (AFT) and Army Combat Fitness Test (ACFT) scores with this updated tool. It also provides acceptable hardware standards and body fat calculations for comprehensive fitness tracking.

AFT score calculationACFT score calculationUpdated May 2025 standards
💪 Health & Fitness
(392)
ad-supported
11
NumWorks Graphing Calculator
NumWorks Graphing Calculator
NumWorks Graphing Calculator
by NumWorks
Free

This app provides a free, intuitive graphing calculator experience on your iPhone or iPad. It's designed to make learning math easier with features for solving equations, graphing functions, and computing statistics. The app is frequently updated with new features and is programmable in Python.

Graphing calculatorSolve equations and linear systemsGraph functions
📚 Education
(94)
free
12
Peptide Calculator: PepCalc
Peptide Calculator: PepCalc
Peptide Calculator: PepCalc
Dosage & Reconstitution Tool
Free

This tool simplifies peptide dosage and reconstitution calculations. It accurately determines injection volumes and the correct amount of water for mixing, converting results to insulin syringe units. Designed for researchers and wellness enthusiasts, it ensures precise and confident peptide administration.

Accurate dosage calculationEasy reconstitution calculationInsulin syringe unit conversion
🏥 Medical
(9)
free
13
PCalc
PCalc
PCalc
The Best Calculator
$9.99

A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.

Optional RPN modeMulti-line displayExtensive unit conversions
🔧 Utilities
(758)
free with in-app purchases
14
Sporty's E6B Flight Computer
Sporty's E6B Flight Computer
Sporty's E6B Flight Computer
Calculator for pilots
$9.99

This aviation calculator app offers 27 functions for navigation, fuel calculations, and conversions. It includes a versatile timer for tracking multiple time zones and performing countdowns with alerts. Designed for pilots, it simplifies complex flight planning and in-flight computations.

27 Aviation Functions22 Aviation ConversionsNavigational Calculations
🗺️ Navigation
(5K)
paid
15
Army Fitness Calculator
Army Fitness Calculator
Army Fitness Calculator
ACFT, APFT, and Body Comp
Free

Calculate Army Fitness Test (ACFT, APFT) scores, body composition, and promotion points. Get target raw values for minimum, maximum, or 80% scores based on gender and age. Includes event instructions and links to official resources.

ACFT and APFT score calculationBody fat and Ht/Wt calculationPromotion points calculation
💪 Health & Fitness
(795)
free with in-app purchases
16
Tank Mix Calculator
Tank Mix Calculator
Tank Mix Calculator
by TapLogic, LLC
Free

This farm app helps users quickly calculate the correct amounts of chemicals needed for spraying crops. It allows for custom chemical entries and provides detailed mixing instructions for full and partial loads based on acreage and tank size.

Calculate spray tank mixesEnter acreage, tank size, and carrier volumeSelect chemicals from a list
🔧 Utilities
(21)
free
17
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
(4.6K)
free with in-app purchases
18
HLL Calculator
HLL Calculator
HLL Calculator
Calculator and Map-View
Free
$0.99 | 100% OFF

Calculate artillery and SPA settings for Hell Let Loose with a standard calculator or an interactive map. Save distances, add markers, and view firing ranges. Includes an Apple Watch app for standalone use.

Mil setting calculator for artillery and SPAsInteractive map for impact targetingSave custom distances
🔧 Utilities
(5)
free
19
LCt50 Calculator
LCt50 Calculator
LCt50 Calculator
by Pearson-Cole Software
$4.99

This utility calculates lethal concentration and time (LCt50) for chemical agents in enclosed spaces. It uses structure dimensions and agent amount to determine safety levels or required agent quantities for a desired LCt50.

LCt50 calculationStructure dimension inputAgent amount input
🔧 Utilities
(6)
paid
20
VetCalc
VetCalc
VetCalc
by DBQ Solutions, LLC
Free

This app helps veterans understand how the Department of Veterans Affairs calculates disability percentages and monthly benefit payments. It accurately applies the Bilateral Factor, which is often missed by other calculators, potentially increasing your overall disability rating and monthly compensation.

Combined disability percentage calculationMonthly benefit payment calculationAccurate Bilateral Factor application
🔍 Reference
(923)
paid