Stress Concentration Factors 2 vs Physics AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stress Concentration Factors 2
This application calculates stress concentration factors for various geometric discontinuities in engineering. It provides nominal and peak stress values, displays relevant equations, and allows users to easily share results via email or print them.
- Calculates Stress Concentration Factor
- Metric and English Units
- Nominal and Peak Stress Calculation
- Displays Equations
- Email/Print Results
- 26 Geometric Solutions
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Sometimes simple stress formulae are not enough. The real peak stresses in hardware occurs at geometric discontinuities such as notches, holes, & filets. To get an accurate stress value, you need a stress concentration factor. This app makes that easy. Along with stress concentration factors, this app calculates the nominal and peak stresses, displays the equations, & easily prints or shares via email your result with a couple of taps. Stress Concentration Factors 2 Features: - Calculates the Stress Concentration Factor - Units in Metric and English Systems - Nominal Stress - Peak Stress - Designed for use on the iPhone, iPod Touch, & iPad - Printing Capability - Ability to email a PDF of the Geometry, Inputs, Equations, & Results Stress Concentration Factors 2 calculates the stress concentration factors & displays the equations for 26 different geometries including: Solutions: • Single U Notch in tension • Single U Notch in bending • Double U Notch in tension, bending, & out of plane bending • Single V Notch in bending • Infinite Row of U Notches in tension • Central Hole in tension • Central Hole in bending, & out of plane bending • Off Center Hole in tension & bending • Rectangular Hole in tension • Infinite Row of Holes in parallel & normal tension • Square Shoulder Fillet in Tension • Square Shoulder Fillet in Bending • U Notch Circular Shaft in tension • U Notch Circular Shaft bending & torsion • Stepped Circular Shaft in tension, bending, & torsion • Circular Shaft with a Radial Hole in tension, bending & torsion Check out our other engineering apps by searching the App Store for: • Pressure Vessel Pro • Moments of Inertia • Mohr's Circle • Stress Intensity Factors Pro or search J.R.Hobbs to see them all.
Physics AI
This app acts as a physics problem solver, offering step-by-step solutions for various physics questions. Users can upload or photograph problems, including diagrams and handwritten notes, to receive detailed mathematical explanations. It covers a wide range of physics topics for students at all levels.
- Photo upload for physics problems
- Step-by-step mathematical solutions
- Covers high school to doctoral research
- Copy and share solutions
- Handles multiple choice, word-based, and diagram problems
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Unlock the secrets of physics with Physics AI, your ultimate physics problem solver! Are you stumped by a complex physics question? Seeking clear, step-by-step explanations? Turn to Physics AI, your academic superhero in the realm of physics. Physics AI expertly tackles an array of physics queries – be it multiple choice, word-based, diagrams, math-centric, or any other type. Simply snap a photo or upload your question, and watch as Physics AI swiftly deciphers and guides you through a comprehensive solution. EXCEPTIONAL FEATURES Effortlessly upload or capture photos of both handwritten and digital physics problems. Seamlessly copy and disseminate intricate solutions. Comprehensive coverage of physics topics, catering to students from high school through to doctoral research. Detailed, step-by-step mathematical solutions. Experience the app's capabilities with a complimentary trial period. Your use of Physics AI signifies your agreement to our Terms of Use and Privacy Policy. A subscription is required to access the contents of the app. Terms of use: https://renaissanceapps.com/terms-conditions Privacy Policy: https://renaissanceapps.com/privacy-policy
Screenshots
Verdict
The clearest difference is price: Physics AI at Free against Stress Concentration Factors 2's $5.99. Physics AI also leads on rating (4.5 vs 3.0) and update cadence (fortnightly vs every 38 months). Stress Concentration Factors 2's advantage is in-app purchases (none vs 2) and ads (none vs shown). On 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
Physics AI is free to download; Stress Concentration Factors 2 costs $5.99 up front. Physics AI sells 2 in-app purchases, starting at $5.99 per 7 days. Stress Concentration Factors 2 asks for nothing beyond the download.
Physics AI holds the better App Store score, 4.5 against 3.0. That said, the two scores are not equally well evidenced: Physics AI has 289 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of Stress Concentration Factors 2's written reviews are positive against 25% of Physics AI's.
Stress Concentration Factors 2 ships an update every 38 months, Physics AI fortnightly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.
| Parameter | Stress Concentration Factors 2 | Physics AI |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 3.0 (1 ratings) | 4.5 (289 ratings) — better |
| Positive reviews | 0.0% of reviews | 25.0% of reviews — better |
| Number of ratings | 1 | 289 — better |
| Update frequency | Every 38 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid — better | Subscription |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 11 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | J.R.Hobbs | Renaissance Apps LLC |
Customer experience
Stress Concentration Factors 2
Physics AI
Bugs and requests
Stress Concentration Factors 2
Not enough reviews yet to summarise bugs or requests.
Physics AI
Reported bugs
4 issues- App shows same question repeatedly
- App not letting user cancel subscription
- App keeps loading instead of solving equations
- App keeps prompting for subscription when advertised as free
Requested features
2 requests- Ability to talk to AI model for better photo input
- Improvement in AI interaction for photo questions
In-app purchases
Stress Concentration Factors 2
No in-app purchases
Physics AI
- Physics AI Weekly Sub3 Days trial$5.997 Days
- Physics AI - Yearly Sub$34.991 Year
Questions
Is Stress Concentration Factors 2 free?
Is Physics AI free?
Which has better reviews, Stress Concentration Factors 2 or Physics AI?
Do Stress Concentration Factors 2 or Physics AI have ads?
Which is updated more often, Stress Concentration Factors 2 or Physics AI?
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