WeldCalc Pro vs Welding Reference Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
WeldCalc Pro
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WeldCalc Pro turns your iPhone into a complete welding calculator for every welder, fabricator, and engineer on the shop floor — brand-neutral, 100% offline, no Wi-Fi required. Get accurate parameters for MIG/GMAW, TIG/GTAW, Stick/SMAW, and Flux-Cored/FCAW welding — all in one app, 100% offline, with no brand lock-in. Stop guessing your settings. Whether you're running a MIG welder on mild steel, TIG welding stainless, striking a 7018 rod, or dialing in flux-cored wire, WeldCalc Pro delivers the right amperage, voltage, wire feed speed, gas flow rate, and travel speed for your joint. WELDING CALCULATORS: - MIG/GMAW Calculator — Voltage, wire feed speed, gas flow, and amperage for solid wire welding. Covers carbon steel, stainless steel, and aluminum across all common wire diameters. - TIG/GTAW Calculator — Amperage, gas flow, tungsten size, and filler rod selection. Supports steel, stainless, aluminum, chromoly, and more. - Stick/SMAW Calculator — Electrode selection, amperage ranges, polarity, and technique guidance for every common rod type including 6010, 6011, 6013, 7014, 7018, and 7024. - FCAW Calculator (Premium) — Complete flux-cored welding parameters with self-shielded and gas-shielded wire data. - Preheat Calculator (Premium) — Calculate required preheat temperatures based on material type, thickness, carbon equivalent, and welding process. Essential for structural and code work. - Heat Input Calculator — Compute heat input using amperage, voltage, and travel speed. Critical for procedures that specify maximum heat input limits. - Carbon Equivalent Calculator — Determine weldability of steel alloys using CE and Pcm formulas. REFERENCE GUIDES: - Filler Metal Guide (Premium) — Match the right filler wire or rod to your base material combination. AWS classifications included. - Electrode Database — Comprehensive data on 10+ electrode types with amperage ranges, positions, polarity, coatings, and AWS classifications. - Amperage Charts — Quick-reference amperage tables organized by material and thickness. - Gas Flow Guide — Recommended shielding gas types and flow rates for every process and material. - AWS Classification Reference — Decode electrode and wire designations at a glance. YOUR DATA, YOUR WAY: - Calculation History — Every calculation is saved automatically. Review, compare, and learn from past results. - Favorites — Star your most-used calculations for instant access. - 100% Offline — No internet required. Every calculation runs on-device. Use it in the shop, on the pipe, or in the field with zero connectivity. - Dark Mode — Full dark mode support designed for bright shop environments and outdoor glare. FREE vs PREMIUM: Free includes MIG, TIG, and Stick calculators, heat input calculator, carbon equivalent calculator, electrode database, amperage charts, gas flow guide, AWS reference, history, and favorites. Premium unlocks FCAW calculator, preheat calculator, filler metal guide, premium materials, and all future calculators and reference tools as they are added. Built for welders, by welders. WeldCalc Pro uses industry-standard formulas and AWS reference data — not locked to any single brand or machine. From apprentice to CWI, this is the welding reference app that belongs in your pocket. Download WeldCalc Pro and get the right parameters — every time. Terms of Use (EULA): https://weldcalcpro.volvoxmobile.com/weldcalcpro/terms Privacy Policy: https://weldcalcpro.volvoxmobile.com/weldcalcpro/privacy
Welding Reference Pro
This app provides welders with essential tools, including calculators for settings and costs, comprehensive reference guides, and exam preparation modules. It offers offline access to all features, with a one-time purchase unlocking advanced calculators and exam practice.
- Weld setting calculators
- Filler metal estimation
- Unit conversion
- Reference guides
- Training modules
- Exam preparation
- Qualification tracking
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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.
Screenshots
Verdict
The clearest difference is update cadence: Welding Reference Pro at every 4 days against WeldCalc Pro's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. WeldCalc Pro sells 2 in-app purchases, starting at $1.99 per 7 days and Welding Reference Pro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
WeldCalc Pro ships an update every 2 weeks, Welding Reference Pro every 4 days. The most recent releases landed on September 10, 2026 and August 27, 2026 respectively.
| Parameter | WeldCalc Pro | Welding Reference Pro |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 18 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Ersel Tarhan | ZIma Logistics LLC |
In-app purchases
WeldCalc Pro
- Weekly Premium7 Days trial$1.997 Days
- Annual Premium1 Month trial$19.991 Year
Welding Reference Pro
- Pro Tools$9.99





