Comparison

Welding Toolbox 2 vs WelderCalc

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

WelderCalc

Features
Read full description

The welding calculator that picks amperage on the first shot โ€” TIG, MIG, stick, flux-core โ€” heat input, travel speed, electrode sizing, all offline. Tired of dialing in by feel? Tired of running test beads on scrap to find your settings? WelderCalc gives you amperage, heat input, travel speed, and electrode sizing for any process and any thickness, in seconds. WHAT'S INSIDE โ€ข Amperage โ€” TIG, MIG, stick, flux-core; by thickness and process โ€ข Heat Input โ€” joules per inch, per process, per pass โ€ข Travel Speed โ€” IPM and meters/min, by deposition rate โ€ข Electrode Sizing โ€” TIG tungsten, stick rod, MIG wire by joint โ€ข Gas Flow โ€” CFH for argon, CO2, mixes โ€ข Filler Calculation โ€” rod count by joint, length, deposition rate โ€ข Fillet Weld Strength โ€” leg size, throat, allowable load โ€ข Bead Reference โ€” root, fill, cap by passes โ€ข Code Reference โ€” common WPS limits (informational) WHO IT'S FOR Pipefitters, structural welders, fab shop guys, mobile welders, welding students prepping for the AWS test. Anyone who'd rather lay good bead than burn rod figuring out settings. FREE vs PRO Free forever: amperage, heat input, travel speed, gas flow. Pro unlocks filler calculation, electrode sizing, fillet weld strength, code reference. One-time or subscription. Subscriptions auto-renew until cancelled. Manage in your Apple ID Subscription Settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://doublevision.company/privacy OFFLINE. NO ACCOUNT. NO ADS. Works in plant shutdowns, on rigs, on remote job sites. Everything runs locally.

Screenshots

Welding Toolbox 24 screens
WelderCalc4 screens

Verdict

The call

The clearest difference is price: WelderCalc at Free against Welding Toolbox 2's $7.99. WelderCalc also leads on update cadence (every 4 days vs every 29 months). Welding Toolbox 2's advantage is in-app purchases (none vs 4). 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

WelderCalc is free to download; Welding Toolbox 2 costs $7.99 up front. WelderCalc sells 4 in-app purchases, starting at $1.99 per month. Welding Toolbox 2 asks for nothing beyond the download.

UpkeepUpdate frequency

Welding Toolbox 2 ships an update every 29 months, WelderCalc every 4 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard3 real differences ยท 5 level
Welding Toolbox 2 versus WelderCalc: the parameters behind the verdict, then further details
ParameterWelding Toolbox 2WelderCalc
Price$7.99Free โ€” better
Positive reviews50.0% of reviewsโ€”
Update frequencyEvery 29 monthsEvery 4 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
MonetizationPaidโ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.016.0
Further details โ€” not scored
Size29 MB1 MB
Age rating4+4+
DeveloperParsify Technologies Antoni KepinskiDouble Vision USA LLC

In-app purchases

None

Welding Toolbox 2

No in-app purchases

4 purchases

WelderCalc

Subscriptions2
  • Pro Monthly7 Days trial$1.991 Month
  • Pro Yearly7 Days trial$9.991 Year
One-time2
  • Pro Unlock$24.99
  • Fab Shop Bundle$139.99

Questions

Is Welding Toolbox 2 free?
Welding Toolbox 2 costs $7.99, with no in-app purchases.
Is WelderCalc free?
WelderCalc is free to download, with in-app purchases available.
Do Welding Toolbox 2 or WelderCalc have ads?
Neither Welding Toolbox 2 nor WelderCalc shows ads.
Which is updated more often, Welding Toolbox 2 or WelderCalc?
Welding Toolbox 2 ships an update every 29 months, and WelderCalc every 4 days. Most recently, Welding Toolbox 2 was updated on October 27, 2026 and WelderCalc on October 25, 2026.

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