Comparison

My Physics Calculator vs WeldCalcs

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

Head to head
About

My Physics Calculator

This app offers a comprehensive suite of over 130 calculators for physics and engineering calculations. It provides clear formulas and definitions for each parameter, making complex calculations accessible with a simple interface.

Highlights
  • 130+ physics and engineering calculators
  • Includes formulas and definitions
  • Simple user interface
  • Mechanics & Motion calculations
  • Fluids & Thermodynamics calculations
  • Electrical & Circuit calculations
  • Projectile Motion calculations
Features
Read full description

My Physics Calculator features 134 calculators for various physics and engineering parameters. With a simple user interface, it provides formulas and definitions for each calculation. List of 134 Calculators: Mechanics & Motion: • Force • Kinetic Friction • Static Friction • Centripetal Force • Centripetal Acceleration • Gravitational Acceleration • Angular Acceleration • Work • Total Work • Power (Work-Based) • Power (Displacement-Based) • Power (Velocity-Based) • Displacement / Distance • Differential Pressure Fluids & Thermodynamics: • Density • Water Density • Kinematic Viscosity • Mass Flow Rate • Temperature • Thermal Conductivity • Thermal Diffusivity • Thermal Linear Expansion • Thermal Volumetric Expansion • Heat Flow • Heat Transfer Rate • Specific Heat Capacity Energy & Motion: • Kinetic Energy • Potential Energy • Elastic Potential Energy • Einstein’s Mass-Energy Equation • Gravitational Potential Velocity & Motion Laws: • Velocity • Circular Velocity • Average Velocity • Escape Velocity • Drift Velocity • Newton’s Law of Gravity • Newton’s Second Law of Motion • Archimedes’ Principle • Kepler’s Third Law • Hooke’s Law • Pascal’s Law • Poiseuille’s Law • Darcy’s Law • Stokes’ Law Engineering Numbers & Factors: • Souders-Brown Equation • Podmore Factor • Cavitation Number • Euler Number • Fourier Number • Knudsen Number • Mach Number • Nusselt Number • Reynolds Number • Weber Number • Froude Number • Prandtl Number • Schmidt Number • Brinell Hardness Number Doppler Effect Calculations: • Wavelength (Front & Behind) • Approaching Source • Receding Source • Approaching Receiver • Receding Receiver Projectile Motion: • Vertical Velocity • Vertical Displacement • Horizontal Displacement • Range Impulse, Momentum & Torque: • Impulse (Velocity-Based) • Impulse (Time-Based) • Momentum (Velocity-Based) • Momentum (Time-Based) • Moment • Torque • Moment of Inertia Engineering & Structural Calculations: • Transverse Strength • Standard Surface Factor • Rectangular Tank Capacity • Cylindrical Tank Capacity • Apparent Porosity • True Porosity Planetary & Seismic Calculations: • Seismic Geophone • Weight on Different Planets • Wenner Spacing (Soil Resistivity) • Luminosity of Stars Sound & Waves: • Sound Pressure Level • Sound Intensity Level • Sound Power Emitted • Sound Wavelength • Sound Speed • RMS Noise • Noise Pollution Level Oscillations & Springs: • Simple Pendulum • Physical Pendulum • Leaf Springs • Helical Spring Rate • Helical Spring Axial Deflection • Helical Spring Index Electrical & Circuit Calculations: • Inductive Reactance • Capacitive Reactance • Resonant Frequency • Inductor Sizing Equation • Capacitor Sizing Equation • Resistance • Battery Life • Battery Charge Time • kVA Calculation • Potentiometer • Voltage Divider • Electrodialysis • Electrical Harmonics • Horsepower • Ohm’s Law (Voltage, Power, Resistance, Current) Material Properties: • Shear Modulus • Bulk Modulus • Young’s Modulus • Stress • Strain

About

WeldCalcs

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.

Highlights
  • Fillet weld design sizing
  • Section property calculation
  • Elastic Method calculations
  • Input dimensions and forces
  • Determines maximum resisting force
  • Reference equations available
Features
Read full description

Useful for the preliminary sizing of fillet welds, WeldCalcs is an engineering calculator app that computes the section properties for typical welding patterns used in steel construction. After selecting a Weld Group, the user enters the dimensions for the depth and width, along with any combination of applied forces and moments. The section properties for the Weld Group, including the area, section moduli and polar moment of inertia, are instantly calculated. The app also determines the maximum resisting resultant force and the initial fillet weld size. The calculations performed by the WeldCalcs app are based on the Elastic Method. This approach treats the weld as a line or a group of lines. This allows the weld group section properties to be determined without knowing the size of the weld. The section properties and the applied loads are used in structural engineering formulas to determine the maximum resisting resultant force along the weld. This resultant force is expressed in terms of force per unit length. Since the weld is evaluated based on a force per unit length, in lieu of stresses, combining the effects from different load types (shear, axial, moment, torsion) is easily accomplished. The applied moments and torsions are resolved into vertical, horizontal and axial components and then vectorially combined with the directly applied shears and axial forces. All of the applied loads are assumed to act through the center of gravity of the weld. Therefore, each segment of the weld resists an equal share of the direct shear and axial forces and a proportional share of the bending moments and torsions relative to the weld segment's distance to the neutral axis of the weld group. The fillet weld size is determined by dividing the maximum resisting resultant force by the available strength of the weld. For practicality, both weld dimensions 'd' and 'b' are limited to a minimum value of 0.25 inches and a maximum value of 100 inches. Dimensions 'tw' and 'tf' are limited to a minimum value of 0.125 inches and a maximum value of 10 inches. The applied forces are limited to a range of -99,999 to +99,999 kips. The applied moments are limited to a range of -99,999 to +99,999 kip-inches. The equations for the section properties and resultant forces used by the app are available for reference and manual verification by the user. The general equations for the resisting forces in each quadrant are based on the applied forces and moments all acting in the positive direction.

Screenshots

My Physics Calculator4 screens
WeldCalcs4 screens

Verdict

The call

The clearest difference is rating: WeldCalcs at 5.0 against My Physics Calculator's 4.3. WeldCalcs also leads on price ($1.99 vs $2.99). My Physics Calculator's advantage is ratings volume (44 vs 1) and iOS requirement (16.6 vs 26.0). On update cadence, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

My Physics Calculator costs $2.99 and WeldCalcs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

WeldCalcs holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: My Physics Calculator has 44 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

My Physics Calculator ships an update every 12 months, WeldCalcs every 15 months. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
My Physics Calculator versus WeldCalcs: the parameters behind the verdict, then further details
ParameterMy Physics CalculatorWeldCalcs
Price$2.99$1.99 — better
Rating4.3 (44 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews—
Number of ratings44 — better1
Update frequencyEvery 12 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.6 — better26.0
Further details — not scored
Size7 MB17 MB
Age rating4+4+
DeveloperV PUGAZHENTHIGlendale Coding Labs, Inc

Customer experience

My Physics Calculator

All ratings44 ratings
Positive81.8%
Neutral2.3%
Negative15.9%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

WeldCalcs

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

My Physics Calculator

No in-app purchases

None

WeldCalcs

No in-app purchases

Questions

Is My Physics Calculator free?
My Physics Calculator costs $2.99, with no in-app purchases.
Is WeldCalcs free?
WeldCalcs costs $1.99, with no in-app purchases.
Which has better reviews, My Physics Calculator or WeldCalcs?
WeldCalcs is rated higher. My Physics Calculator averages 4.3 out of 5 from 44 ratings, while WeldCalcs averages 5.0 from 1 ratings.
Do My Physics Calculator or WeldCalcs have ads?
Neither My Physics Calculator nor WeldCalcs shows ads.
Which is updated more often, My Physics Calculator or WeldCalcs?
My Physics Calculator ships an update every 12 months, and WeldCalcs every 15 months. Most recently, My Physics Calculator was updated on October 24, 2026 and WeldCalcs on October 24, 2026.

Other comparisons