Welding Reference Pro

Calculators & Exam Prep

Only for iPhone

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

iPhone

Now with Training Academy — study modules, spaced repetition, and exam prep for AWS D1.1, ASME IX, OSHA Safety, and CWI. Track your welding qualifications too. 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. Heat Input — calculate joules per inch with process efficiency factors for SMAW, GMAW, GTAW, FCAW, and SAW. Preheat Calculator — input your carbon equivalent elements and thickness to get preheat temperature and crack sensitivity assessment. 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. 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 — snap a photo, 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: All 8 calculators, all 9 reference guides, Training Academy study modules, qualification tracker, checklists, weld log. PRO UNLOCK ($9.99 one-time): CWI Exam Prep, AWS D1.1 Exam Prep, ASME IX Exam Prep, OSHA Safety Exam Prep, Welding Math practice, WPS Reference templates, Distortion Guide. No subscription. No ads. No tracking. No account required.

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- 8 welding calculators: settings, heat input, preheat, wire feed speed, gas flow, filler weight, unit converter, weld cost estimator - 9 reference guides: electrode guide (27 entries), welding symbols, joint prep, defect ID, gas chart, materials, NDE methods, heat treatment, pipe welding - Training Academy with 6 study modules and spaced repetition - Exam prep for CWI, AWS D1.1, ASME IX, OSHA Safety, and Welding Math (330+ questions) - Welder qualification tracker with expiration warnings - QA checklists (pre-weld, during, post-weld) - Weld log with photo capture - Global search across all content - Imperial and Metric unit support - Editable cost rates for the weld cost estimator - Dark theme designed for shop and field use

Version 1.0.3

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

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    Information

    Seller
    • Zima Logistics LLC
    Size
    • 4 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Zima Logistics LLC
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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