Comparison

Welding Toolbox 2 vs WeldCalc Pro

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Welding Toolbox 2

This app provides essential tools for welding inspection, including calculators for heat input, equivalent carbon content, critical metal parameters, and pitting resistance. It supports both metric and imperial systems and allows for data export.

Highlights
  • Heat input calculator
  • Equivalent carbon content calculator
  • Critical metal parameter calculator
  • Pitting resistance calculator
  • Metric & imperial system support
  • Result history and export
  • Open-source
Features
Read full description

About This app contains a set of useful tools related to welding inspection, including: - Heat input calculator - Equivalent carbon content (CEQ, CET & CE AWS) calculator - Critical metal parameter (PCM) calculator - Pitting resistance equivalent number (PREN) calculator Heat input calculation works according to EN 1011-1 norm. Features - Supports metric & imperial systems - Supports custom fields - Includes result history and export as a spreadsheet (XLSX file) feature - Created in cooperation with professional welding engineers - Lightweight & fast - Free & fully open-source - Without ads or in-app purchases Source code repository: https://github.com/xxczaki/welding-toolbox-2 Support You can ask questions, report issues and provide suggestions by: - sending an email to appstore@parsify.eu - creating an issue in our GitHub repository

About

WeldCalc Pro

Features
Read full description

WeldCalc Pro turns your iPhone into a complete welding calculator for every welder, fabricator, and engineer on the shop floor โ€” brand-neutral, 100% offline, no Wi-Fi required. Get accurate parameters for MIG/GMAW, TIG/GTAW, Stick/SMAW, and Flux-Cored/FCAW welding. 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 โ€” 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 โ€” Amperage, gas flow, tungsten size, and filler rod selection. Supports steel, stainless, aluminum, chromoly, and more. - Stick/SMAW Calculator โ€” Electrode selection, amperage ranges, polarity, and technique guidance. E6013 and E7018 are free; 6010, 6011, 7014, 7024 and the rest are Pro. - FCAW Calculator (Pro) โ€” Complete flux-cored welding parameters with self-shielded and gas-shielded wire data. REFERENCE TOOLS: - Preheat Calculator โ€” Required preheat temperature from material type, thickness, carbon equivalent, and welding process. Essential for structural and code work. - Heat Input Calculator โ€” Heat input from amperage, voltage, and travel speed. Critical for procedures that specify maximum heat input limits. - Amperage Charts โ€” Quick-reference amperage tables by material and thickness. A starter set is free; the complete tables are Pro. - Filler Metal Guide โ€” Match the right filler wire or rod to your base material combination, with AWS classifications. The first material group is free; the rest are Pro. - Gas Flow Guide โ€” Recommended shielding gas types and flow rates for every process and material. - Unit Converter โ€” Convert between metric and imperial welding units. YOUR DATA, YOUR WAY: - Calculation History โ€” Your last 3 calculations are free. Pro keeps every one of them, plus favorites. - 100% Offline โ€” No internet required. Every calculation runs on-device. Use it in the shop, on the pipe, or in the field with zero connectivity. - Imperial or Metric โ€” Enter thickness as 3/16" or 0.25 and get results in inches, ipm and cfh. - Light and Dark โ€” Both fully designed, for bright shop environments and outdoor glare. WHAT PRO UNLOCKS: The FCAW calculator, every stick electrode beyond E6013 and E7018, the complete amperage charts, the full filler metal guide, and unlimited calculation history with favorites โ€” plus every calculator and reference tool added in future. Everything else is free, forever: the MIG, TIG and Stick calculators, preheat, heat input, gas flow, the unit converter, and your last 3 calculations. Built for welders, by welders. WeldCalc Pro uses industry-standard formulas and AWS reference data โ€” 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 โ€” every time. Terms of Use (EULA): https://weldcalcpro.volvoxmobile.com/weldcalcpro/terms Privacy Policy: https://weldcalcpro.volvoxmobile.com/weldcalcpro/privacy

Screenshots

Welding Toolbox 24 screens
WeldCalc Pro4 screens

Verdict

The call

The clearest difference is price: WeldCalc Pro at Free against Welding Toolbox 2's $7.99. WeldCalc Pro also leads on update cadence (every 3 weeks vs every 29 months). Welding Toolbox 2's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

WeldCalc Pro is free to download; Welding Toolbox 2 costs $7.99 up front. WeldCalc Pro sells 3 in-app purchases, starting at $1.99 per 7 days. Welding Toolbox 2 asks for nothing beyond the download.

UpkeepUpdate frequency

Welding Toolbox 2 ships an update every 29 months, WeldCalc Pro every 3 weeks. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.

Scorecard3 real differences ยท 5 level
Welding Toolbox 2 versus WeldCalc Pro: the parameters behind the verdict, then further details
ParameterWelding Toolbox 2WeldCalc Pro
Price$7.99Free โ€” better
Positive reviews50.0% of reviewsโ€”
Update frequencyEvery 29 monthsEvery 3 weeks โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationPaidโ€”
DevicesiPhone, iPad โ€” betteriPhone
Requires iOS16.0 โ€” better17.0
Further details โ€” not scored
Size29 MB21 MB
Age rating4+4+
DeveloperParsify Technologies Antoni KepinskiErsel Tarhan

In-app purchases

None

Welding Toolbox 2

No in-app purchases

3 purchases

WeldCalc Pro

Subscriptions2
  • Weekly Premium7 Days trial$1.997 Days
  • Annual Premium14 Days trial$19.991 Year
One-time1
  • WeldCalc Pro Lifetime$39.99

Questions

Is Welding Toolbox 2 free?
Welding Toolbox 2 costs $7.99, with no in-app purchases.
Is WeldCalc Pro free?
WeldCalc Pro is free to download, with in-app purchases available.
Do Welding Toolbox 2 or WeldCalc Pro have ads?
Neither Welding Toolbox 2 nor WeldCalc Pro shows ads.
Which is updated more often, Welding Toolbox 2 or WeldCalc Pro?
Welding Toolbox 2 ships an update every 29 months, and WeldCalc Pro every 3 weeks. Most recently, Welding Toolbox 2 was updated on November 7, 2026 and WeldCalc Pro on November 5, 2026.

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