Best Montag Toolbox Apps

211+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated May 2026

Out of 211+ montag toolbox apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Top Picks for Montag Toolbox

Calculator‰#2

Calculator‰ by Tim O's Studios, LLC

Default Calculator
Strong Contender
🔧 Utilities
4.9😊(404K ratings)
FreeAds
Calculator‰ screenshot 1
Calculator‰ screenshot 2

Experience a beautifully designed calculator with large buttons and a clear display for quick and efficient calculations. Try it now to discover the simplicity and ease of use for your everyday arithmetic needs.

What We Love

  • 👍 Easy to use
  • 👍 Large, clear buttons
  • 👍 Accurate calculations
  • 👍 Simple, no-frills design

Room to Improve

  • 🔍 Lack of advanced features
  • 💰 Ads can be intrusive
  • 🔒 Concerns about security/malware
Construction Master Pro Calc#3

Construction Master Pro Calc by Calculated Industries, Inc.

Feet Inch Fraction Calculator
Worth Considering
🔧 Utilities
4.8😐(38K ratings)
FreeIn-App Purchases
#53in Utilities
Construction Master Pro Calc screenshot 1
Construction Master Pro Calc screenshot 2
Construction Master Pro Calc screenshot 3
Construction Master Pro Calc screenshot 4
Construction Master Pro Calc screenshot 5
Construction Master Pro Calc screenshot 6

An essential tool for professionals working with dimensions, this app optimizes speed and accuracy while reducing errors. Try it for free before purchase on your App Store account. Ideal for enhancing productivity on the go.

What We Love

  • 🚀 Convenient and always available
  • ⚙️ Comprehensive construction calculations
  • 💪 Industry-standard tool
  • 🔍 Accurate and reliable

Room to Improve

  • 💰 Subscription model too expensive
  • 🔒 Locks data behind subscription
  • 🔄 Forced to re-purchase after device changes

More Montag Toolbox apps to explore

4
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

A versatile calculator app for iPhone and iPad offering over 40 calculators and unit converters for finance, health, and more. Simplify your calculations with just one app today!

📊 Productivity
(4.8K)
5
EZ Financial Calculators
EZ Financial Calculators
EZ Financial Calculators
by Bishinew Incorporated
Free

A comprehensive financial calculator app offering a wide range of calculators for finance, investment, loans, retirement, bonds, stocks, credit cards, auto loans, and more. Customize and prioritize calculators, share results via email, and enjoy offline functionality except for the Currency Converter. Contact pfinanceapp@gmail.com for questions or support.

💰 Finance
(46)
6
Bosch Toolbox
Bosch Toolbox
Bosch Toolbox
Digital Tools for PROs
Free

Access a collection of innovative digital tools designed for professional tradespeople in construction, electrical work, gardening, and more with the free Bosch Toolbox app. Enhance your efficiency and productivity on the job with this comprehensive set of tools tailored to meet your specific needs.

🔧 Utilities
(677)
7
Calculator +
Calculator +
Calculator +
Scientific Calc Plus Fraction
Free

Experience the award-winning calculator app for iPad and iPhone, offering a free basic and scientific calculator with an elegant design, simple usability, and beautiful interface. Calculate with ease and precision today!

🔧 Utilities
(9.6K)
8
BA Financial Calculator
BA Financial Calculator
BA Financial Calculator
BAII Plus Emulator
Free

This app, developed as a BAII Plus emulator, caters to CFA candidates and charterholders, offering identical functionality to the TI calculator with a user-friendly experience. For support, contact cfa.calculator@gmail.com.

💰 Finance
(2.9K)
9
Calculator HD++
Calculator HD++
Calculator HD++
by smalltech sarl
Free

Experience a high precision calculator app that offers a user-friendly interface, supports multiple functionalities like undo, switching workspaces, Bluetooth keyboard compatibility, and more. Print and share your calculations with ease and precision for free!

🔧 Utilities
(268)
10
FSWizard
FSWizard
FSWizard
CNC Machinist Calculator
Free

This CNC machinist calculator simplifies the process of determining optimal cutting conditions for milling, drilling, and turning operations by automatically suggesting speeds, feeds, and cutting depths based on the selected work and tool materials. By using this calculator, machinists can improve productivity, optimize cutter life, and access various reference charts and tools, such as drill and tap charts, triangle and fillet calculators, and more.

📊 Productivity
(47)
11
Feet and Inches Calculator
Feet and Inches Calculator
Feet and Inches Calculator
Perfect Construction Calc!
Free

Calculate measurements with ease using this construction calculator designed for quick and accurate results. Perfect for all your project needs – download now and simplify your work!

🔧 Utilities
(384)
12
Calculator⁼
Calculator⁼
Calculator⁼
Fraction, Scientific Calc +
Free

A handy math assistant for solving basic and scientific calculations intuitively and quickly. Become a math master with this free app!

🔧 Utilities
(357K)
13
Calculator⁻
Calculator⁻
Calculator⁻
Best hand calculator
Free

Discover the best hand calculator for all your basic math needs - addition, subtraction, multiplication, division, and more, with customizable features like recording and recalling past calculations and touch sound. Perfect for school children and anyone seeking a simple and efficient calculator solution!

🔧 Utilities
(3.4K)
14
Calculator-Math Toolbox
Calculator-Math Toolbox
Calculator-Math Toolbox
Edit process & Manage history
Free

A versatile calculator app that enables users to perform various mathematical operations with ease. Simplify your calculations on-the-go with this user-friendly tool!

🔧 Utilities
(339)
15
Construction Master 5 Calc
Construction Master 5 Calc
Construction Master 5 Calc
Feet Inch Fraction Calculator
Free

An innovative feet-inch-fraction calculator designed for construction professionals, the app offers versatile functionality, advanced calculation capabilities, and comprehensive solutions for various projects. Optimized for mobile devices, it enhances efficiency and accuracy in measurements, making it a valuable tool for builders, contractors, designers, and advanced DIYers. Simplify complex calculations and elevate your projects with the Construction Master 5 – your indispensable partner for precision and professionalism.

🔧 Utilities
(12K)
16
The Best Calculator - Calc Pro
The Best Calculator - Calc Pro
The Best Calculator - Calc Pro
10 Powerful Calculators
Free

Experience the ultimate mobile calculator with 10 powerful calculators and financial worksheets, trusted by millions worldwide for its unrivaled accuracy and advanced features. From standard and scientific calculators to unit converters and graphing tools, this app has it all. Get it now for advanced calculations at your fingertips!

🔧 Utilities
(4.6K)
17
McCalc Fusion Calculator
McCalc Fusion Calculator
McCalc Fusion Calculator
HDPE/PP Pressure Calculator
Free

This calculator helps you find the correct fusion pressure for HDPE and Polypropylene pipe fusion jobs by selecting your fusion machine and entering pipe size and pressure requirements. Try it now to take the guesswork out of pipe fusion and get the recommended theoretical gauge pressure for your project.

💼 Business
(18)
18
Construction Calculator
Construction Calculator
Construction Calculator
Feet Inch Calculator
Free

A top-rated Construction Calculator designed for iPhone and iPad, catering to carpenters' needs for precise inch, feet, and fraction calculations. Packed with user-friendly features and an elegant design for seamless usability. Experience award-winning accuracy at your fingertips – download now for professional construction calculations!

🔧 Utilities
(554)
19
CNC Machinist Calculator Pro
CNC Machinist Calculator Pro
CNC Machinist Calculator Pro
by Shane Anderson
$14.99

Enhance your machining operations with a specialized calculator built for manufacturing professionals and CNC operators. Optimize efficiency, speed, and accuracy in your processes with this essential tool.

📊 Productivity
(642)
20
Calculator%.
Calculator%.
Calculator%.
Simple, big screen and buttons
Free

A simple calculator application with a big display and buttons, designed for easy daily use. Perform basic calculations like addition, subtraction, multiplication, and division with a clear display format and intuitive design.

🔧 Utilities
(3.9K)