# Welding Reference Pro — Calculators & Exam Prep > Comprehensive welding reference, calculators, training, and exam prep for professionals. (iPhone/iPad app by ZIma Logistics LLC.) - Source: https://appshunter.io/ios/app/welding-reference-pro/id6761250858 (this page in markdown: same URL + `.md`) - Developer: [ZIma Logistics LLC](https://appshunter.io/developer/1883563240) - Category: Utilities, Education - Price: Free with in-app purchases - Rating: 5.00/5 from 1 App Store ratings - Age rating: 4+ - Requires: iOS 18.0 · 6 MB - Languages: American English - Released: 2026-03-28 - Data updated: 2026-08-27 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/welding-reference-pro/id6761250858/reviews.md ## What is Welding Reference Pro? Welding Reference Pro puts every tool a welder needs in one app — calculators, reference guides, training, and QA checklists. No internet required. No subscription. One price, everything unlocked. CALCULATORS (8) Weld Settings — enter your process, material, and thickness to get amperage, voltage, wire speed, and electrode recommendations for MIG, TIG, Stick, and Flux-Core. Wire Feed Speed — convert between wire feed speed and deposition rate across 6 wire diameters. Gas Flow — get shielding gas type and flow rate recommendations by process, material, joint type, and position. Filler Weight Estimator — calculate pounds of filler metal needed for 5 joint types with waste factors. Unit Converter — 7 categories including length, temperature, pressure, flow rate, weight, heat input, and area. Weld Cost Estimator — estimate labor, filler, and gas costs with your own custom rates. Edit every rate in the app. Heat Input (Pro) — calculate joules per inch with process efficiency factors for SMAW, GMAW, GTAW, FCAW, and SAW. Preheat Calculator (Pro) — input your carbon equivalent elements and thickness to get preheat temperature and crack sensitivity assessment. REFERENCE GUIDES (9) 27 electrodes and filler metals — E6010 through Inconel, searchable by classification, type, or application. Electrode Guide, Welding Symbol Decoder (18 AWS A2.4 symbols), Joint Preparation Guide (13 joints), Weld Defect ID (10 defects with causes and fixes), Gas Reference Chart, Material Properties (18 materials including duplex and nickel alloys), NDE Methods, Heat Treatment Reference, and Pipe Welding schedules. TRAINING ACADEMY 6 study modules with spaced repetition: Welding Fundamentals, Electrode Mastery, Blueprint Reading, Metallurgy, Weld Quality, and Code Awareness. Questions you get wrong come back sooner. Track your streak and progress. EXAM PREP (Pro) Practice for CWI (56 questions), AWS D1.1 (85 questions), ASME Section IX (88 questions), OSHA Welding Safety (56 questions), and Welding Math (45 questions). Timed mode, score history, and category filtering. ENTERPRISE FEATURES Qualification Tracker — track your welding certifications, positions, and expiration dates. Get warned when a cert is expiring. QA Checklists — pre-weld, during-weld, and post-weld inspection checklists with standard templates. Tag by project. Weld Log — attach a photo from your library, tag welding parameters, and save locally. Export to CSV or PDF for QA documentation. Global Search — type "7018" and find the electrode, compatible settings, and defect fixes all at once. Tap any result to copy it to clipboard. Save and name any calculation. Export results as PDF. FREE FEATURES: 6 calculators (Weld Settings, Wire Feed Speed, Gas Flow, Filler Weight, Unit Converter, Weld Cost), all 9 reference guides, Training Academy study modules, qualification tracker, checklists, weld log (up to 15 entries). PRO UNLOCK ($9.99 one-time): Heat Input Calculator, Preheat Calculator, CWI Exam Prep, AWS D1.1 Exam Prep, ASME IX Exam Prep, OSHA Safety Exam Prep, Welding Math practice, WPS Reference templates, Distortion Guide, unlimited weld log entries. No subscription. No ads. No account required. No personal data collected — just anonymous usage diagnostics. ## Key features - Weld setting calculators - Filler metal estimation - Unit conversion - Reference guides - Training modules - Exam preparation - Qualification tracking ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Pro Tools | $9.99 | one-time | ## Frequently asked questions about Welding Reference Pro ### What welding calculators does Welding Reference Pro offer? Welding Reference Pro includes calculators for weld settings, wire feed speed, gas flow, filler weight estimation, unit conversion, weld cost, heat input, and preheat temperature. Some advanced calculators require a one-time Pro unlock. ### Does Welding Reference Pro require an internet connection? No, Welding Reference Pro is designed to work offline. All calculators, reference guides, and training modules are available without an internet connection, making it convenient for use in any location. ### What kind of reference guides are included in Welding Reference Pro? The app features 9 reference guides covering 27 electrodes and filler metals, welding symbols, joint preparation, weld defects, gas types, material properties, NDE methods, heat treatment, and pipe welding schedules. ### How does the Training Academy in Welding Reference Pro work? The Training Academy offers 6 study modules using spaced repetition, focusing on welding fundamentals, electrodes, blueprint reading, metallurgy, weld quality, and code awareness. It tracks your progress and revisits questions you get wrong. ### What exam preparation is available in Welding Reference Pro? The app provides exam prep for CWI, AWS D1.1, ASME Section IX, OSHA Welding Safety, and Welding Math, with timed modes, score history, and category filtering. This feature is part of the Pro unlock. ### What are the enterprise features of Welding Reference Pro? Enterprise features include a Qualification Tracker for welding certifications, QA Checklists for inspections, and a Weld Log for documenting welding parameters and attaching photos. These can be exported for documentation. ### How much does Welding Reference Pro cost? The app is free to download and includes many features. Advanced calculators and exam prep modules can be unlocked with a one-time purchase of $9.99. ### What is the update frequency for Welding Reference Pro? The latest version, 1.0.20, was released on 2026-06-18, indicating recent updates. The developer, Zima Logistics LLC, actively maintains the application. ## Version history (last 5 releases) ### 1.0.20 — 2026-06-18 v1.0.20 - Improved launch stability and reliability on the latest iOS. - More dependable iCloud restore when setting up on a new device. v1.0.15 - Performance and reliability improvements under the hood ### 1.0.14 — 2026-05-05 Pro entitlement improvements for early supporters ### 1.0.13 — 2026-05-01 - Heat Input and Preheat Calculator are now Pro tools — the professional calculators serious welders and inspectors reach for most - Weld Log free tier supports up to 15 entries — upgrade to Pro for unlimited logging - Improved reliability and performance throughout ### 1.0.12 — 2026-05-01 - Weld Log entries now show project name in the list for faster job lookup - Edit any existing weld log entry — add or change a photo, update parameters, revise notes - Weld Log accessible from the home screen toolbar with a clear label ### 1.0.11 — 2026-04-29 - Corrected factual errors in reference guides: amperage ranges, preheat temperatures, filler classifications, CE formula constants, and gas flow rates now match published manufacturer and standards data - More accurate reference data verified against a dual-pass technical review ## More apps by ZIma Logistics LLC - [Splitr: Run Calculator](https://appshunter.io/ios/app/splitr-run-calculator/id6760271991) - [Lift: Gym Workout Tracker](https://appshunter.io/ios/app/lift-gym-workout-tracker/id6760431697) - [Ranked Choice: Group Vote](https://appshunter.io/ios/app/ranked-choice-group-vote/id6760730059) - [BugOut: Prep and Test](https://appshunter.io/ios/app/bugout-prep-and-test/id6760804087) - [Zima: Ballistics Calculator](https://appshunter.io/ios/app/zima-ballistics-calculator/id6760805492) - [Zima: Offline AI](https://appshunter.io/ios/app/zima-offline-ai/id6760844773) All apps by ZIma Logistics LLC: https://appshunter.io/developer/1883563240 ## Related topics [welding settings](https://appshunter.io/ios/topics/welding-settings) · [miller welding](https://appshunter.io/ios/topics/miller-welding) --- *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 2026-08-27.*