Best apps like JRS Calc

23+ similar apps compared and reviewed

3.9 avg rating
4 free apps
Updated July 2026
JRS Calc
JRS Calc
The National Board of Boiler and Pressure Vessel Inspectors

JRS Calc is great, but it's not the only option. Explore 23+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to JRS Calc

WeldCalcs#1

WeldCalcs by Glendale Coding Labs, Inc

Quick Fillet Weld Design
Editor's Choice
🔧 Utilities
5.0(1 ratings)
$1.99
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This engineering calculator app assists in the preliminary sizing of fillet welds for steel construction. It computes section properties for typical welding patterns, allowing users to input dimensions and applied forces/moments to determine the maximum resisting resultant force and initial weld size.

Orifice Flow#3

Orifice Flow by Muralidhar Shenoy

Worth Considering
🔧 Utilities
4.0(1 ratings)
$3.99
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Calculate fluid flow rates in pipes and conduits using orifice plates. Supports common industrial fluids and custom fluid properties, with adjustable units and orifice types. Ideal for engineers and designers.

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Pressure Vessel Pro
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Calculate the required design and nominal thickness for various pressure vessel components, including shells, heads, and cones, according to ASME Section VIII Div 1 codes. This offline tool offers high performance for engineers in process equipment manufacturing.

Shell thickness calculationHead thickness calculation (Hemi, Tori, Ellipsoidal)Cone thickness calculation
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Heat Exchanger Performance
Heat Exchanger Performance
Heat Exchanger Performance
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Evaluate shell and tube heat exchanger performance, including overall heat transfer U-coefficient and maintenance needs based on performance changes. Save and reload multiple heat exchanger data sets for continuous monitoring.

Evaluate overall heat transfer U-coefficientDetermine maintenance requirementsSave and reload multiple heat exchanger data
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