Mohr's Circle vs Steam Tables Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mohr's Circle
This application assists users in performing Mohr's Circle calculations and verifying their diagrams. It offers solutions for 2D plane stress, calculates various stress values, and generates graphical representations of stress states. Users can also share results and store multiple stress states.
- 2D Plane Stress Mohr's Circle Solutions
- Max, Min, and Shear Stress Calculations
- Principal Stress Plane Angle
- Mohr's Circle Diagram
- Stress State Rotation Views
- Shareable Results
- Unit Conversion (English/Metric)
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Do you need to perform a Mohr's Circle calculation? Would you like to make sure you Mohr's Circle diagram is correct? With the power of your iOS device and this app, you can do this quickly and easily. (5 Stars) "Perfect…Great tool, great app!" -The fever, the focus Mohr's Circle Calculates: ● 2D Plane Stress Mohr's Circle Solutions ● Max Stress ● Min Stress ● Max Shear Stress ● Average Stress ● Principal Stress Plane Angle ● Max Shear Stress Plane Angle ● The normal stress at an arbitrary angle ● The tangential stress at an arbitrary angle ● The shear stress at an arbitrary angle Mohr's Circle Graphs 4 Views Including: ● Mohr's Circle Diagram ● Stress State Rotated to the Principal Stress Plane ● Stress State Rotated to the Max Shear Stress Plane ● Stress State Rotated to an arbitrary angle Mohr's Circle Features: ● Universal App (Designed for both the iPhone and iPad) ● Share your results via a printout or email ● View the equations used to calculate the results ● Store as many stress states as you want for future reference Units Included! Independently set input and output units both English and Metric. Check out our other engineering apps by searching the App Store for: • Pressure Vessel Pro • Moments of Inertia • Stress Concentrations Pro • Stress Intensity Factors Pro or search J.R.Hobbs to see them all. AppStore.com/JRHobbs
Steam Tables Pro
This app calculates a comprehensive range of thermodynamic properties for steam using the IAPWS-97 equations. It allows calculations based on various input parameters like pressure, temperature, enthalpy, entropy, and quality, and displays results in charts.
- Calculates properties from pressure and temperature
- Calculates properties from pressure and enthalpy
- Calculates properties from pressure and entropy
- Calculates properties from pressure and quality
- Calculates properties from saturated temperature and quality
- Calculates properties from enthalpy and entropy
- Displays results in T-s, P-h, and H-s charts
- Supports multiple units
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Steam Tables calculates the functions below, using the IAPWS-97 equations: •Function(p,t) – to calculate properties from pressure and temperature; •Function(p,h) – to calculate properties from pressure and enthalpy; •Function(p,s) – to calculate properties from pressure and entropy; •Function(Psat,x) – to calculate properties from pressure and quality, for saturated steam and liquid and two fases; •Function(Tsat,x) – to calculate properties from saturated temperature and quality, for saturated steam and liquid and two fases; •Function(h,s) – to calculate properties from entalpy and entropy. From the functions above, you can calculate quickly the properties below: MAIN THERMODYNAMIC PROPERTIES: •Pressure; •Temperature; •Enthalpy; •Entropy; •Vapor Fraction; •Specific Volume; •Internal Energy; •Density; •Region; OTHER THERMODYNAMICA PROPERTIES: •Specific Isobaric Heat Capacity (Cp); •Specific Isochoric Heat Capacity (Cv); •Speed of Sound; •Kappa; •Vapor Volume Fraction. TRANSPORT PROPERTIES: •Dynamic Viscosity; •Kinematic Viscosity; •Prandtl; •Surface Tension; •Thermal Conductivity. MORE •Record the results •See the Records in the Chart T-s, P-h and H-s. •Multiple units. The best thermodynamic properties calculator on the App Store!!!!!
Screenshots
Verdict
The clearest difference is update cadence: Steam Tables Pro at every 2 months against Mohr's Circle's every 15 months. Steam Tables Pro also leads on price ($4.99 vs $5.99). Mohr's Circle's advantage is review sentiment (43% vs 26%) and chart position (#191 vs unranked). On ads, in-app purchases, monetization model and device support 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
Mohr's Circle costs $5.99 and Steam Tables Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mohr's Circle ships an update every 15 months, Steam Tables Pro every 2 months. Both last shipped on September 16, 2026.
| Parameter | Mohr's Circle | Steam Tables Pro |
|---|---|---|
| Price | $5.99 | $4.99 — better |
| Rating | 3.3 (3 ratings) — better | — |
| Positive reviews | 42.9% of reviews — better | 26.1% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 15 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #191 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 8 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | J.R.Hobbs | Eduardo Almeida |
Customer experience
Mohr's Circle
Steam Tables Pro
In-app purchases
Mohr's Circle
No in-app purchases
Steam Tables Pro
No in-app purchases
Questions
Is Mohr's Circle free?
Is Steam Tables Pro free?
Do Mohr's Circle or Steam Tables Pro have ads?
Which is updated more often, Mohr's Circle or Steam Tables Pro?
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