Project Engineer

Engineering Calculators

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

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

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Thanks for using Project Engineer! This update makes getting started easier and smooths out a few rough edges. GUIDED TOUR New users now get a short, interactive walkthrough of the essentials — search, instant metric/imperial switching, working through a calculator, the live graph, and more. Replay it anytime from the menu ("Take a tour"). EASIER, SAFER SIGN-UP Account creation now includes a Confirm Password field, so a single typo can't lock you out of a brand-new account. REFINEMENTS - Smoother sign-in and start-up - Minor fixes and polish throughout More calculators and improvements are on the way. Have a request or spotted something? Reach us anytime through the in-app contact form.

Version 1.01

The developer, Shaw Abrey, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Purchases
    • Location
    • Contact Info
    • User Content
    • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Shaw Abrey
Size
  • 52.6 MB
Category
  • Productivity
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPad
    Requires iPadOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
  • Premium (Annual) $99.99
  • Premium $12.99
  • Pro (Annual) $49.99
  • Pro $5.99
  • Learn More
Copyright
  • © 2026 Project Engineer
  • Developer Website
  • Privacy Policy