Tack: Welding Calculator
Chirag Arora Utilities iPhoneiPadiPod touch
Tack: Welding Calculator is a free Utilities app for iPhone and iPad by Chirag Arora. Requires iOS 15.0. Updated October 25, 2026.
- Price
- Free
- on the App Store
- Size
- 53 MB
- Age 4+
- Updated
- Oct 25
- 2026 · v1.1.1
Screenshots
About Tack: Welding Calculator
Welding settings for the joint in front of you. Pick a process, pick a thickness. Tack gives you amperage, voltage, wire feed speed, travel speed, shielding gas and stickout — in two taps, with no Calculate button anywhere. SHOWS ITS WORK Every number opens to the arithmetic that produced it: the formula, your numbers substituted into it, and where the value came from. Nothing is reconstructed for display. IT REFUSES RATHER THAN GUESS Ask for spray transfer in a vertical position and it says no, and says why. Past the range a rule of thumb is honest over, it stops instead of extrapolating. That is the whole point of the tool. THE CALCULATORS • Weld settings — amps, volts, wire speed, gas, travel • Fillet weld sizing — throat, code minimums, capacity • Heat input and arc energy, both conventions • Wire feed speed and the burnoff constant, both directions • Duty cycle, deposition rate, consumable and job cost • Weld group as a line, material weight, hardness conversion • Shrinkage and distortion, cutting settings, unit converter • Carbon equivalent, stainless metallurgy and ferrite number • Electrode classification decoder and welding symbols • Tungsten, shielding gas, lens shades, filler metal selector PIPE FITTING • Pipe offsets: travel, run and cut length, simple or rolling • Miter elbow: cut angle, segment lengths, cut-back table • Branch saddle: cut depths around a tee or lateral branch • Elbows & spool cut (ASME B16.9, ГОСТ 17375): elbow take-outs and the pipe to cut • Flanges (Pro; ASME B16.5 Class 150/300, ГОСТ 33259 PN 10–40): dimensions, bolt holes and take-off THE REFERENCE Defects with cause and correction. Visual acceptance limits by loading case. Joints and preparation. Positions. Metal identification. Heat-affected zone. Safety — fume, hot work, confined space, protective equipment. A plain glossary. FREE, PERMANENTLY Carbon steel settings, the symbol decoder, fillet sizing, heat input, the gas guide and every page about safety are free and always will be. So is the arithmetic behind every number, including inside a tool you are only previewing. WORKS IN THE SHOP Everything runs in airplane mode. Calculations never leave the phone. Twenty-two languages, imperial and metric. Starting parameters and reference data. A qualified procedure, the governing code and the engineer of record govern — verify on a coupon before production work.
What’s new
Version 1.1.1 · Updated October 25, 2026
New in 1.1.0: • Elbows & spool cut (free): ASME B16.9 and ГОСТ 17375 elbow take-outs, and the cut length of a spool between elbows and flanges. Use in Offsets sends a take-out to Pipe offsets. • Flanges (Pro): ASME B16.5 Class 150/300 and ГОСТ 33259 PN 10–40 dimensions and the bolt-hole layout. New in 1.0.2: • Pipe offsets, miter elbows and branch saddle ordinates. • Numbers and measurements read correctly in Arabic and Hebrew.
App privacy
The developer, Chirag Arora, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Contact Info: Email Address
- Identifiers: User ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data
Used for: Analytics, App Functionality
Alternatives to Tack: Welding Calculator
Looking for apps like Tack: Welding Calculator? Here are 6 similar apps on the App Store. The highest rated is WeldKit: Welding Calculators (5.0/5), and all 6 are free to download.
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Weldwise: Welding Calculator
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WeldMaster: Welding Calculator
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Square Tube Layout Calculator
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WeldKit: Welding Calculators
5.0
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WeldCalc Pro - Welding Calc
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FITSIZ
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Tack: Welding Calculator | – | Free | October 25, 2026 | |
| Weldwise: Welding Calculator | – | Free | Oct 18, 2026 | Compare |
| WeldMaster: Welding Calculator | – | Free | Oct 19, 2026 | Compare |
| Square Tube Layout Calculator | – | Free | Aug 10, 2026 | Compare |
| WeldKit: Welding Calculators | 5.0 / 5 (1) | Free | Apr 27, 2026 | Compare |
| WeldCalc Pro - Welding Calc | – | Free | Oct 21, 2026 | Compare |
| FITSIZ | – | Free | May 1, 2026 | Compare |