Mathintosh vs HB Construction Calculator

A calculator, a tip calculator, and a unit converter in one beautifully themed app. No ads, no tracking, and every feature is free. Mathintosh is a fast, fun, multi-function calculator for iPhone, iPad, iPhone Duo, and Apple Watch, packed with helpful tools, beautiful themes and plenty of ways to make it your own. Four Core Modes • Calculator: fast, easy, and every basic covered. • Scientific: trigonometry, logarithms, powers, factorials, memory and more. • Tip Calculator: pick your percentage, round the total up or down, and split the bill. • Converter: dozens of units across 10 categories, including live currency rates and time zones. Three More Modes • Fraction: separate whole-number, numerator and denominator pads, with step-by-step working. • Pythagoras: enter any two sides of a right triangle to find the third. • Quadrilaterals: solve for any four-sided shape. Made for Every Screen • iPhone Duo: Mathintosh adapts to every pose. Half-open, the display sits above the fold and the keys below; turn it sideways and your paper tape sits alongside. • iPad: big, comfortable keypads with a consistent look in every mode. • Apple Watch: a calculator on your wrist that syncs your theme from iPhone. Make It Yours • 23 themes, from classic terminals to vibrant colors and retro-inspired tech. PDP-11 and Luminosity are free, each with light and dark modes; 21 more come with a one-time purchase. • Choose your fonts, button shapes, and glass, flat or 3D button styles. • The same purchase unlocks 11 alternate app icons. Handy Extras • Paper tape: a clear history of every calculation, ready to review, pin and share. • Send a value from one mode to another with a tap. • Widgets, Control Center controls and Quick Actions. • Built-in support for VoiceOver, Dynamic Type and other accessibility features. Mathintosh is actively developed, and new features arrive regularly.

HB Construction Calculator is a powerful construction calculator built for contractors, carpenters, electricians, plumbers, HVAC technicians, concrete crews, estimators, and other construction professionals. Perform feet-inch-fraction math the way measurements are used on the jobsite, quickly convert between imperial and metric units, and access eight specialized construction calculators in one app. Works fully offline. No login. No account required. No paywall. 8 CONSTRUCTION CALCULATORS IN ONE APP ADVANCED CAL Calculate roof pitch, rise, run, diagonal, hip and valley rafters, jack rafters, stairs, circles, board feet, studs, blocks, drywall, footings, roofing squares, and more. MASTER 5 An everyday construction and carpentry calculator for stairs, arcs, irregular pitch calculations, jack rafters, weight, cost, and paperless tape measurements. ELECTRICAL CALCULATOR Perform electrical calculations including Ohm's Law, Kirchhoff equations, wire sizing, voltage drop, conduit fill, motor full-load current, motor protection, grounding, and other common electrical calculations. PIPE AND PLUMBING CALCULATOR Calculate pipe offsets, rolling offsets, fitting allowances, cut lengths, 45-degree fittings, flow, pressure, pipe sizing, and other common plumbing measurements. CONCRETE AND MASONRY CALCULATOR Calculate concrete volume, cubic yards, concrete bags, footings, walls, blocks, rebar, stairs, drop, and estimated truck loads. HVAC AND SHEET METAL CALCULATOR Calculate duct takeoffs, OGEE offsets, Fan Laws, velocity pressure, FPM, Law of Cosines, stretch-outs, and other HVAC and sheet metal measurements. EXCAVATION AND GRADING CALCULATOR Calculate cut and fill, slopes, percent grade, bank volume, loose volume, compacted volume, swell, shrink, and estimated truck loads. MATERIAL ESTIMATOR Estimate quantities and coverage for paint, tile, decking, fencing, studs, blocks, flooring, sheet goods, brick, gravel, and other construction materials. FEET, INCHES AND FRACTIONS Enter measurements the same way you use them on the jobsite. For example: 12 ft 6 3/8 in There is no need to convert measurements to decimals before calculating. Quickly work with: * Feet and inches * Fractions * Yards * Meters * Square measurements * Cubic measurements * Imperial and metric conversions SAVE YOUR CALCULATIONS Keep important calculations in History so you can return to them later. Your calculations stay organized and available when you need them. CHOOSE YOUR DEFAULT CALCULATOR Choose the calculator you use most from Tools and set it as your default. Your selection is saved so your preferred calculator is ready the next time you open the app. BUILT FOR CONSTRUCTION PROFESSIONALS HB Construction Calculator is designed for: * Contractors * Carpenters * Electricians * Plumbers * HVAC technicians * Concrete and masonry crews * Excavation and grading crews * Estimators * Construction professionals Whether you are measuring lumber, laying out stairs, calculating electrical loads, planning pipe runs, estimating concrete, sizing ductwork, grading a site, or preparing a material takeoff, HB Construction Calculator gives you practical tools directly on your phone. SIMPLE, PRIVATE AND READY FOR THE JOBSITE * Fully offline * No account required * No login * No paywall * No unnecessary setup Open the app and start calculating. HB Construction Calculator — from Handy Bro. Learn More: https://www.handybro.app Terms of Use: https://www.handybro.app/construction_calculator/terms Privacy Policy: https://www.handybro.app/construction_calculator/privacy