Comparison

iS7 vs My Physics Calculator

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

Head to head
About

iS7

Features
Read full description

--- Industrial automation tool --- Read and write variables on Siemens S7 PLC (input, output, timer, counter, memory and data block) Manage a virtual push button for remote operations, with configurable I/O, for custom use. Check operative status of S7.300 and S7.400 PLC Link the new S7.1200 and S7.1500 series and, on the last release, also the little LOGO PLC. For all detailed informations please visit support website. http://www.trotti.eu/iS7/index.html

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
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

Screenshots

iS74 screens
My Physics Calculator4 screens

Verdict

The call

The clearest difference is price: My Physics Calculator at $2.99 against iS7's $14.99. My Physics Calculator also leads on in-app purchases (none vs 1). iS7's advantage is update cadence (every 4 months vs every 12 months). On ads, device support and iOS requirement 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

iS7 costs $14.99 and My Physics Calculator $2.99 up front. iS7 sells 1 one-off in-app purchase. My Physics Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

iS7 ships an update every 4 months, My Physics Calculator every 12 months. The most recent releases landed on October 5, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 7 level
iS7 versus My Physics Calculator: the parameters behind the verdict, then further details
ParameteriS7My Physics Calculator
Price$14.99$2.99 — better
Rating—4.3 (44 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—44 — better
Update frequencyEvery 4 months — betterEvery 12 months
AdsNoNo
In-app purchasesYesNo — better
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better16.6
Further details — not scored
Size43 MB7 MB
Age rating4+4+
DeveloperCarlo TrottiV PUGAZHENTHI

In-app purchases

1 purchases

iS7

One-time1
  • Alarms$2.99
None

My Physics Calculator

No in-app purchases

Questions

Is iS7 free?
iS7 costs $14.99, and also offers in-app purchases.
Is My Physics Calculator free?
My Physics Calculator costs $2.99, with no in-app purchases.
Do iS7 or My Physics Calculator have ads?
Neither iS7 nor My Physics Calculator shows ads.
Which is updated more often, iS7 or My Physics Calculator?
iS7 ships an update every 4 months, and My Physics Calculator every 12 months. Most recently, iS7 was updated on October 5, 2026 and My Physics Calculator on October 14, 2026.

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