Engineering Formulas vs Structural Engineering Suite
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Engineering Formulas
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EngiRef is the all-in-one engineering reference app that works 100% offline. Access formulas, material properties, reference tables, and a powerful unit converter - all without internet connection. FORMULA LIBRARY Browse 140+ essential engineering formulas organized by discipline: ⢠Mechanical Engineering: stress, strain, torque, power, gear ratios, spring design ⢠Electrical Engineering: Ohm's law, AC/DC circuits, impedance, resonance ⢠Civil/Structural: beam deflection, Euler buckling, Manning's equation ⢠Thermodynamics: ideal gas law, Carnot efficiency, heat transfer ⢠Fluid Mechanics: Bernoulli, Reynolds number, Darcy-Weisbach ⢠Materials Science: Young's modulus, Poisson's ratio, fatigue analysis BUILT-IN CALCULATOR Enter your values and get instant results. Every calculation shows step-by-step solutions so you understand the process, not just the answer. Perfect for learning and exam preparation. MATERIALS DATABASE Access properties for 55+ engineering materials: ⢠Carbon steels (AISI 1018, 1045, 4140, 4340) ⢠Stainless steels (304, 316, 17-4 PH) ⢠Aluminum alloys (6061-T6, 7075-T6, 2024-T3) ⢠Titanium, copper, nickel alloys ⢠Plastics (ABS, HDPE, Nylon, PEEK, Delrin) ⢠Composites, concrete, and wood Compare up to 3 materials side-by-side with density, tensile strength, elastic modulus, thermal conductivity, and more. REFERENCE TABLES ⢠Bolt specifications: Metric M3-M36, SAE/Imperial sizes ⢠Pipe schedules: NPS dimensions and wall thickness ⢠Wire gauges: AWG 0000-40 with ampacity ratings UNIT CONVERTER Convert between 16 categories including length, pressure, temperature, force, energy, flow rate, and viscosity. Accessible from any screen via slide-over panel. PHYSICAL CONSTANTS Quick reference for 34 constants including speed of light, gravitational constant, Boltzmann constant, Avogadro's number, and more. QUIZ MODE Test your knowledge with flashcard-style quizzes. Track progress across all disciplines. Prepare for FE and PE exams. ADDITIONAL FEATURES ⢠Dark and light themes (follows system setting) ⢠Favorites to bookmark frequently used formulas ⢠Calculation history with timestamps ⢠Create and save custom formulas ⢠Export and share your data ⢠LaTeX formula rendering ⢠iPad-optimized layouts PRIVACY FOCUSED EngiRef collects zero personal data. No analytics, no ads. All your calculations and favorites stay on your device. We believe engineering tools should respect your privacy. Whether you are a student preparing for exams, a working engineer needing quick field reference, or a technician looking for material specs, EngiRef puts essential engineering knowledge in your pocket. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Structural Engineering Suite
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Structural Engineer Hub is a complete structural engineering platform that combines professional calculators, animated simulators, a full learning curriculum, and field assessment tools in one app. Whether you're an engineering student mastering statics and steel design, a practicing engineer running a quick beam check on site, or an inspector documenting a structure's condition, Structural Engineer Hub puts the essentials in your pocket ā and it works offline. The app is organized into two modules. Buy only what you need, or get both in a discounted bundle. STRUCTURAL ENGINEER'S TOOLKIT ⢠Beam calculator ā UDL, point, and off-center loads ⢠Column calculator ā Euler buckling + yield ⢠Structure assessment for houses, bridges, buildings, and walls ⢠ASCE 7-22 load combination generator ⢠Full SI ā Imperial unit converter ⢠Digital inspection checklist with scoring ⢠Camera capture for condition documentation ⢠Sample problems and a materials library STRUCTURAL LEARNING STUDIO ⢠7-module structured curriculum ⢠8 animated simulators (beam, column, seismic, wind, and more) ⢠LRFD / ACI / ASCE 7 Quick Calc Hub ⢠Guided projects with step-by-step instructions ⢠Drawing gallery of structural illustrations ⢠Searchable reference library ⢠Lesson bookmarks, personal notes, and progress tracking WHY YOU'LL USE IT ⢠Works offline ā no account, no internet required ⢠One-time purchases ā no subscriptions, ever ⢠Buy a single module or unlock everything with the bundle ⢠Grounded in ASCE 7, AISC, and ACI engineering standards ⢠Built for real engineering work, from the classroom to the field From study to site, Structural Engineer Hub is the structural toolkit you'll actually keep on your phone. Disclaimer: This app is an independent educational and reference tool. Calculator results are approximations for preliminary and educational use only and must be verified by a licensed professional engineer before any design or construction decision. ASCE, AISC, ACI, and all related standards and trademarks are the property of their respective organizations; this app is not affiliated with or endorsed by them.
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Verdict
The clearest difference is iOS requirement: Engineering Formulas at 15.1 against Structural Engineering Suite's 17.0. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days and Structural Engineering Suite sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
| Parameter | Engineering Formulas | Structural Engineering Suite |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | ā |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad, iPod ā better | iPhone, iPad |
| Requires iOS | 15.1 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 45 MB | 65 MB |
| Age rating | 12+ | 4+ |
| Developer | Mobin Akhter | Yuhsiu Lai |
In-app purchases
Engineering Formulas
- Weekly Premium$4.997 Days
- Yearly Premium$29.991 Year
- Lifetime Access$54.99
Structural Engineering Suite
- Structural Learning Studio$4.99
- Structural Engineer's Toolkit$4.99
- All Modules Bundle$6.99
Questions
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Is Structural Engineering Suite free?
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