GearTech OS

Field calculators for trades

Free · Designed for iPad. Not verified for macOS.

GearTech OS replaces the box of single-purpose calculators in your truck with one app built for the trades — by someone who works them. Pick your trade and get tools made for it: pipefitting, welding, electrical, framing, concrete, HVAC, plumbing, machining, solar, sheet metal and automotive. No pipe jargon cluttering the electrician's screen, no electrical keys on the welder's — each trade gets its own tools and its own keypad shortcuts. EVERY result shows the math. Tap "Show math" under any answer to see the formula, your numbers plugged in, and the result. Learn it, trust it, and check your work in the field. REAL diagrams. Every tool draws what you're building — a 3D rolling offset box, a butt-weld elbow you can cut to a custom degree, a saddle/fishmouth, a reducer cone, roof rafters, conduit fill, ducts, gears and more. NEW — CRANE HAND SIGNALS IN 3D. 22 ASME B30.5 signals. The signal person gives the signal and the crane performs the motion, with the load always plumb. Spin the camera and watch it from wherever you have to stand. NEW — FLANGE BOLT-UP. Target-stress torque by bolt size, material, lubricant and percentage of yield, with the 30/60/100% passes worked out and the tightening order drawn for 4 to 32 bolts. Built for pipefitters and welders first: - Pipe offsets, rolling offsets, fishmouth/saddle templates, miters, trunnions, reducers (concentric & eccentric), and ASME B16.9 fittings with custom degrees - Spread/line banks, slope/grade, thermal expansion - Crane hand signals in 3D and flange bolt-up torque - Constants cheat-sheet and a 272-question practice EXAM for the NITC / UA STAR, including crane signal person — every question explained step by step, and the app remembers what you missed Plus 100+ tools across 10 more trades: - Electrical: voltage drop, conduit fill (NEC), box fill, ampacity + derating, motor FLC, 3-phase power, stub-up take-up - Framing: rafters, hip/valley/jack, stairs, pitch, baluster spacing, board feet - Concrete: slab/footing/column volume, bags, rebar, blocks - HVAC: tonnage, CFM, duct sizing (round & rect), friction rate, sensible BTU - Plumbing: drain slope, DFU, fixture units to GPM, pipe sizing, gas pipe - Machinist, Solar, Welding, Sheet metal, Automotive Works 100% offline — the 3D included. No account, no ads, no tracking. Your settings, cut lists and memories stay on your phone. Bilingual: English and Spanish, switch anytime. We build the world around us. Our tools should be built for us. — Per Diem Syndicate

  • 5.0
    out of 5
    10 Ratings

3D crane hand signals A new three-dimensional viewer with 22 ASME B30.5 signals. The signal person and the crane perform the motion in real time, and you can orbit the camera to see it from any angle, including the operator's point of view. Everything works offline The 3D engine now ships inside the app. Rolling 3D, Fit-up and the crane signals work the same inside a plant or refinery with no signal. 180 new exam questions Two new sections were added: Crane signal person (1926.1419, 1926.1422 and ASME B30.5) and NITC final practice. The bank is now 272 questions, each with an explanation and a step-by-step solution. The exam now remembers your progress It tracks which questions you have mastered and which you missed, with progress by category. The "Review my mistakes" button builds a session from only the ones you still owe. Flange bolt-up A target-stress torque calculator with bolt material, lubricant and percentage of yield, plus the 30/60/100% passes and the tightening-order diagram for 4 to 32 bolts.

The developer, Josue Ponce, 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 Not Collected

    The developer does not collect any data from this app.

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

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

    Seller
    • Josue Ponce
    Size
    • 2.2 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 16.0 or later.
    • iPhone
      Requires iOS 16.0 or later.
    • iPad
      Requires iPadOS 16.0 or later.
    • Mac
      Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Per Diem Syndicate