Engineering Formulas vs ISGC
Price, ratings, monetisation and update history for both apps, side by side — 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/
ISGC
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ISGC est l'application officielle de l'Institut Supérieur de Génie Civil. Elle réunit étudiants, enseignants et administration autour d'un espace unique, simple et sécurisé. ÉTUDIANTS • Consultez vos notes dès leur publication et téléchargez vos bulletins • Emploi du temps à jour, semaine par semaine • Suivi des absences et justification en ligne • Documents et supports de cours de chaque matière • Annonces de l'institut et de vos enseignants, avec notifications • Carte étudiant numérique • Stages et rapports : dépôt des comptes rendus, suivi des délais • Réclamations directement auprès de la scolarité • Consultation des années passées ENSEIGNANTS • Appel et suivi des absences en quelques secondes • Saisie et publication des notes par type d'évaluation • Cahier de texte et partage de documents • Annonces à vos classes • Jurys de stage et comptes rendus • Statistiques de vos matières et relevé d'heures ADMINISTRATION • Gestion des emplois du temps, salles et créneaux • Suivi des étudiants, groupes et promotions • Délibérations, bulletins et attestations • Calendrier académique et années scolaires Connexion avec votre matricule ou votre adresse ISGC. L'accès est réservé aux membres de l'institut ; il n'est pas possible de créer un compte depuis l'application.
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Verdict
The clearest difference is in-app purchases: ISGC at none against Engineering Formulas's 3. On price, 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
Both are free to download. Engineering Formulas sells 3 in-app purchases, starting at $4.99 per 7 days. ISGC asks for nothing beyond the download.
| Parameter | Engineering Formulas | ISGC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 45 MB | 54 MB |
| Age rating | 12+ | 4+ |
| Developer | Mobin Akhter | Mohamed Ahmed Ahmed Mahmou |
In-app purchases
Engineering Formulas
- Weekly Premium$4.997 Days
- Yearly Premium$29.991 Year
- Lifetime Access$54.99
ISGC
No in-app purchases
Questions
Is Engineering Formulas free?
Is ISGC free?
Do Engineering Formulas or ISGC have ads?
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