SimulaSheet: Engineering Tools

SimulaSheet is an engineering calculator built the way engineers actually work: every formula names its source, every calculation is tested against solved examples from the literature, and every result is drawn as a live technical drawing that responds to your inputs. WHAT'S INSIDE • 23 categories, 80+ calculation modules, 230+ solved cases • Strength of materials: beams, torsion, buckling, combined stress with Mohr's circle, fatigue, fracture mechanics, contact stress • Tolerances and fits: ISO 286 limits computed from the standard's formulas — not copied tables • Machine elements: bolted joints and preload torque, welds, springs, keys and pins, bearing life, gears, belts and chains • Thermal: expansion, thermal stress, conduction, convection, heat exchangers • Fluids and pressure: pipe flow, pumps, pneumatics, hydraulics, pressure vessels • Electrical: cables and voltage drop, motors, transformers, AC power • Manufacturing: punching, bending, cutting data, deep drawing • Dynamics, vibration, linear motion, power transmission, automation, corrosion, heat treatment, mechanisms and more • Materials library: 55 engineering materials with composition, properties and standard equivalents • Unit converter one tap away on every screen; metric and US units DRAWINGS, NOT DECORATION Every calculation is illustrated with a parametric technical drawing — supports, load arrows, dimension lines, section views — redrawn live as you change the inputs. Nothing is a stock image. TRUST THE NUMBERS Every formula carries a citation (book or standard, down to the chapter or equation). Every module ships with tests against solved examples from the references. Where a value cannot be derived from a formula, the app says so instead of guessing. YOURS, OFFLINE • Works fully offline — the app makes no network connection of its own • No ads, anywhere, ever • No account, no sign-up, no tracking, no analytics SDKs • 16 languages FREE AND PRO, HONESTLY More than half of the calculations, all reference guides, all catalogues and every drawing are free — no time limits. Pro is a single one-time purchase that unlocks every calculation case (today's and future ones), PDF calculation reports, saved projects, unlimited favorites and history, the professional sections of material cards, comparison tools and custom materials. No subscription. BUILT FOR Mechanical, civil and electrical engineers, technicians, machinists, maintenance crews and engineering students. Found a mistake or missing a calculation? Tell us — an app built on cited sources is an app where fixes land fast.