Eng Dynamics vs Mechanical Formula
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eng Dynamics
This app offers practice problems and solutions for engineering Dynamics courses, mirroring textbook structures. It links to a free online eBook for theoretical support. A free version provides limited problems, while a paid version unlocks a comprehensive library.
- Real homework and test problems
- Organized by textbook sections/chapters
- Complete solutions with graphics
- Links to online eBook theory
- Extensive problem library (Pro version)
- Problems used in real engineering classes
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'Eng Dynamics' app provides real homework and test problems for the common engineering course called Dynamics. All problems are organized in sections and chapters common to most textbooks. Each problem has a complete solution with graphics to help you better understand how to solve the problem. Also, each problem has a link to a theory web page for that section at the online eBook (eCoursesBook.com). There is no cost for the online eBook, and it can be accessed outside of the app. The 'Lite' version (free) of the app has a select number of problems, about 50-70. The 'Pro' version ($3.99) has over 400 problems. Neither has ads. Both versions use the internet to pull problems from an online database as needed. Network connection is required to run the app. Each problem is small (less than 20 k) and are vector-based graphics. All problems have been used in real engineering classes. Problems are accessed through an online database, so if any errors are identified, they will be updated and the app will use the corrected version. This program is copyrighted and cannot be distributed without the author's written consent.
Mechanical Formula
This app provides over 200 essential mechanical engineering formulas and calculations in a user-friendly tool. It's designed to simplify complex concepts and speed up problem-solving for students, professionals, and educators.
- 200+ mechanical engineering formulas
- Instant calculations
- Intuitive interface
- Real-world application explanations
- Exam preparation aid
- Lifetime Premium option
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The Mechanical Engineering Formula & Calculator app brings together 200+ essential mechanical engineering formulas and calculations in one powerful and easy-to-use tool. Designed specifically for mechanical students, professionals, and educators, this app simplifies complex concepts and makes problem-solving faster and more accurate. Developed by engineers for engineers, this app covers a wide range of mechanical engineering topics, helping users understand the principles behind each formula and how they are applied in real-world scenarios. Whether you are studying, revising, or working on-site, this app serves as your reliable engineering companion. With an intuitive interface, you can easily select any calculator, enter the required values, and get instant results with clear output. No complicated steps — just accurate calculations at your fingertips. Perfect for: - Mechanical engineering students - Practicing engineers - Technical instructors - Exam preparation & quick reference Boost your productivity and master mechanical calculations with confidence. In app purchase included : Lifetime Premium Privacy policy : https://chatlyst.in/privacy.html Terms and condition : https://chatlyst.in/tcondition.html
Screenshots
Verdict
The clearest difference is in-app purchases: Eng Dynamics at none against Mechanical Formula's 1. Eng Dynamics also leads on rating (5.0 vs 4.7) and iOS requirement (9.0 vs 13.0). Mechanical Formula's advantage is ratings volume (34 vs 1). On price, update cadence, ads and monetization model 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. Mechanical Formula sells 1 one-off in-app purchase. Eng Dynamics asks for nothing beyond the download.
Eng Dynamics holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Mechanical Formula has 34 ratings behind it against 1, so its average is the more settled of the two.
Eng Dynamics ships an update every 8 months, Mechanical Formula every 4 months. The most recent releases landed on June 10, 2026 and September 19, 2026 respectively.
| Parameter | Eng Dynamics | Mechanical Formula |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.7 (34 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 34 — better |
| Update frequency | Every 8 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 21 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | Kurt Gramoll | Kantaben Gorasiya |
Customer experience
Eng Dynamics
Mechanical Formula
In-app purchases
Eng Dynamics
No in-app purchases
Mechanical Formula
- Lifetime$9.99
Questions
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