# GearTech OS — Field calculators for trades > Trade-specific field calculators with math and diagrams, works offline. (iPhone/iPad app by Josue Ponce.) - Source: https://appshunter.io/ios/app/geartech-os/id6785117856 (this page in markdown: same URL + `.md`) - Developer: [Josue Ponce](https://appshunter.io/developer/6785117860) - Category: Utilities - Price: Free - Rating: 5.00/5 from 10 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 2 MB - Languages: American English - Released: 2026-07-02 - Data updated: 2026-09-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/geartech-os/id6785117856/reviews.md ## What is GearTech OS? 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 ## Key features - Specialized tools for 10+ trades - Detailed math for every calculation - Real diagrams of built components - Offline functionality - Bilingual (English/Spanish) - No ads or tracking ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/geartech-os/id6785117856/reviews.md ### 5/5 — 10/10 *2026-07-27* Lo mejor para trabajar en campo ### 5/5 — REALLY HANDY TOOL 10/10 *2026-07-24* this is such a great handy app for any trade you’re in. it comes down to the T when you need to break anything down. would recommend to anyone from beginner to difficult when you need the step by step info to solve any function/equation out there! to all my blue collars out there give it a try this is definitely a game changer out there in the field ✅✅ ### 5/5 — Best tool for free *2026-07-19* It got all the tools I need without paying nothing I love it ### 5/5 — Quick answers *2026-07-16* I will be searching info for my welding machine to fix it and this app got it in a sec ### 5/5 — Interesting app *2026-07-15* Has a variety of information to use for any trade. Very helpful when in doubt or just curious about anything in general or industrial construction. Also love the fact that shows diagrams and images of the material you are working with. ### 5/5 — Outstanding calculator *2026-07-15* This app is spectacular! It has become one of the most useful tools for my work. It’s fast, accurate, and very easy to use. I hope you continue improving it and add the remaining schedule calculations and more pipe fitting features in future updates. Keep up the great work—highly recommended! ⭐⭐⭐⭐⭐ ### 5/5 — Easy to use *2026-07-15* Best app I’ve ever used helps with measurements and hard math very recommended ### 5/5 — Download the App! *2026-07-09* Such a helpful calculator and easy to use. I recommend!!! ### 5/5 — Amazing calculator application *2026-07-07* Such a great calculator to use! It has been very helpful for many trades and has made my job easier😊 ### 5/5 — Excelente aplicación *2026-07-04* He utilizado esta aplicación y me ha parecido muy útil por lo rápida y fácil que es de usar. La recomiendo porque ayuda a consultar información relacionada con números de identificación de manera sencilla, lo que puede ahorrar tiempo en algunos procesos de trabajo, La interfaz es clara, funciona de forma eficiente y los resultados se obtienen en poco tiempo,  En mi experiencia, ha sido una herramienta práctica cuando necesito realizar consultas de forma rápida para cualquier tipo de trabajo. (Sin duda, la recomendaría a quienes necesiten una aplicación fácil de usar y útil para este tipo de consultas, siempre utilizándola.. ## Frequently asked questions about GearTech OS ### What trades does GearTech OS support? GearTech OS supports a wide range of trades including pipefitting, welding, electrical, framing, concrete, HVAC, plumbing, machining, solar, sheet metal, and automotive. Each trade has its own set of tools and shortcuts tailored to its specific needs. ### Does GearTech OS work offline? Yes, GearTech OS works 100% offline. This means you can access all its tools and features without an internet connection, making it ideal for use in the field where connectivity may be limited. ### Can I see the calculations in GearTech OS? Absolutely. Every result in GearTech OS shows the underlying math. You can tap 'Show math' under any answer to see the formula, your input numbers, and the final result, allowing you to learn, trust, and verify your work. ### Does GearTech OS have ads? No, GearTech OS is completely ad-free. The developers have stated there are no ads, no tracking, and no account required, ensuring a clean and uninterrupted user experience. ### What languages does GearTech OS support? GearTech OS is bilingual and supports both English and Spanish. Users can switch between languages at any time within the app's settings. ### Is GearTech OS suitable for beginners? While built by and for tradespeople, the 'Show math' feature makes it educational. It includes a practice exam for the NITC / UA STAR, suggesting it can aid in learning and preparation for certifications. ### How often is GearTech OS updated? The provided data indicates the latest version is 1.0, released on 2026-07-02. Further update frequency information is not available, but it is a new release. ### What devices is GearTech OS available on? GearTech OS is available on iPhone and iPad. It is designed for mobile use with a user interface optimized for these Apple devices. ## Version history (last 5 releases) ### 1.8 — 2026-09-18 The camera reads now. Photograph an isometric, a problem sheet, the stencil on a pipe, or a calculation written by hand, and the app pulls out the numbers and solves it. Everything is read on your phone; photos never leave it. Cut length fixed: it now subtracts the weld root gap, the way it is done in the field. The keypad and the assistant give the same number. The assistant understands far more: elbow, tee and reducer take-offs from ASME B16.9 tables, pipe weight and capacity, inside diameter, circumference, water velocity, electrode amperage, and wall transition against B31.3 and API 1104 thresholds. Ask it the way you talk on the job. Solves what is missing on an isometric: elevation difference, a dimension chain with one blank, slope, unknown angle and rolling offset — with the math shown step by step. Arc marks for cutting elbows in the field: back, side and throat. Pipe from 22" through 48", including 34" and 42". Nine languages: Spanish, English, Portuguese, Tagalog, Vietnamese, Haitian Creole, Polish, Russian and Chinese. New settings: units, 1/16 or 1/32 fractions, millimeters, root gap, defaults and voice. Backup: save and restore your cut lists, jobs and settings. ### 1.7 — 2026-07-26 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. ### 1.6 — 2026-07-23 New in 1.6: • Rolling Offset, Fishmouth and Miter are now interactive 3D studios you can rotate. • New Fit-up / Tie-in and Lift point (center of gravity) tools. • Illustrated crane and rigging hand-signal guide (ASME B30.5) for pipefitters. • Welding: interactive multimeter diagnostics and API 1104 weld-inspection limits. • Smarter offline assistant that answers in plain language and remembers context. • Cleaner shop-drawing diagrams, plus scroll and translation fixes. ### 1.4 — 2026-07-17 • Full pipe schedules — every ASME B36.10 schedule (5, 10, 20, 30, 40, 60, 80, 100–160, STD/XS/XXS) in the calculator, Volume and Pipe Data tools. • New AI Assistant — type or dictate a trade question and it solves it (instrument calibration, offsets, pressure, BTU, threads and more) or answers code/knowledge questions. Works offline. • Welding machine repair — interactive wiring schematic for engine-drive welders, tap-to-learn parts explorer, and step-by-step guided diagnosis. Added Miller and other brands. • Rolling offset rebuilt — feet-inch input, pipe take-out and cut length, exact fitting angle by available space, and a clear 3D diagram. • Tap any diagram to view it full-screen, smoother scrolling, and dozens of fixes. ### 1.3 — 2026-07-15 What's new in 1.3: • New tools: Rigging (sling loads, angle, WLL — ASME B30.9) and Hydraulics (cylinder force, pressure and flow). • Welding: tap-to-learn machine component explorer plus Diesel Welder diagnostics (SA-200/250/300). • Miter tool now has two modes — cut a standard fitting or fabricate a segmented elbow — with clearer diagrams. • Bigger, easier-to-read offset triangle. • Fixed feet display (whole feet no longer show an extra inch mark) and several English/Spanish text fixes. • Pipe Data remembers your last OD. ## Apps similar to GearTech OS | App | Rating | Price | Category | | --- | --- | --- | --- | | [Pipe Offset Calc: Spoolset](https://appshunter.io/ios/app/pipe-offset-calc-spoolset/id6805885264) | — | Free | Utilities | | [Pipe Calc Elite](https://appshunter.io/ios/app/pipe-calc-elite/id595640000) | 4.8 (152) | $19.99 | Utilities | | [Easy Time and Work Tracker](https://appshunter.io/ios/app/easy-time-and-work-tracker/id6462012468) | 5.0 (1) | Free | Utilities | | [Summi: USCIS Case Tracker](https://appshunter.io/ios/app/summi-uscis-case-tracker/id6474602940) | — | Free | Utilities | | [PipeFit Pro: Pipe Calculator](https://appshunter.io/ios/app/pipefit-pro-pipe-calculator/id6758904461) | 4.7 (3) | Free | Utilities | | [MyPlace VIN Scanner](https://appshunter.io/ios/app/myplace-vin-scanner/id1588564161) | — | Free | Utilities | --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-24.*