Project Engineer

Project Engineer is a complete engineering toolkit for iPhone and iPad, 240+ technical calculators across the disciplines you actually use, in one clean, fast, results-focused app. No more juggling spreadsheets, textbooks, lookup tables, and one-off websites. Enter your inputs and get clear, accurate, instantly readable results, every time.

INSTANT METRIC ↔ IMPERIAL Switch any input or result between metric and imperial units instantly, with a single tap. No re-typing, no manual conversions, every value updates on the spot.

BUILT FOR REAL ENGINEERING WORK Project Engineer spans civil, environmental, mechanical, and more, for example: • Manning's equation for pipe and open-channel flow • Solar azimuth & position • Hydraulics, hydrology & stormwater • Geotechnical & structural • Thermodynamics & fluid mechanics • First-principles tools, mathematics & unit conversions …and many more, with new calculators on the way.

LIVE-DATA TOOLS (PREMIUM) A standout you won't find in ordinary calculator apps: calculators that pull real-world climate and environmental data from live sources to give site-specific results, including rainwater tank sizing, irrigation demand, and pond-level exceedance. Turn textbook formulas into answers grounded in the real conditions at your location.

DESIGNED FOR CLARITY & SPEED • Instant metric/imperial switching on every value • A consistent, distraction-free layout so the answer is always front and centre • Fast, on-device calculations • Save your results and sync them across devices • Mark favourites for the tools you use most

SIMPLE, FAIR PLANS • Free: 39 calculators to get started • Pro: the full standard library, unlimited saved results, favourites, and cloud sync • Premium: everything in Pro, plus live-data tools and early access to new features

WHO IT'S FOR Practising engineers, designers, drafters, technicians, and engineering students who want trustworthy calculations without the clutter, at the desk or in the field. Project Engineer continues to improve based on your feedback. Have a request or spotted something? Reach us anytime through the in-app contact form. Subscriptions are auto-renewable and billed through your Apple ID; they renew unless cancelled at least 24 hours before the period ends, and you can manage or cancel anytime in your device settings.

Terms of Service: https://projectengineer.app/terms Privacy Policy: https://projectengineer.app/privacy