Mechanical Formula vs eigenCalc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
eigenCalc
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Matrix Calculator that computes eigenvalues and eigenvectors as well as SVD, and that has been tested with 228x228 matrices.
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Verdict
The clearest difference is in-app purchases: eigenCalc at none against Mechanical Formula's 1. eigenCalc also leads on update cadence (monthly vs every 4 months). Mechanical Formula's advantage is iOS requirement (13.0 vs 15.5). On price, ads 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
Both are free to download. Mechanical Formula sells 1 one-off in-app purchase. eigenCalc asks for nothing beyond the download.
Mechanical Formula ships an update every 4 months, eigenCalc monthly. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.
| Parameter | Mechanical Formula | eigenCalc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (34 ratings) — better | — |
| Number of ratings | 34 — better | — |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 42 MB | 2 MB |
| Age rating | 4+ | 17+ |
| Developer | Kantaben Gorasiya | Luis Acevedo-Arreguin |
In-app purchases
Mechanical Formula
- Lifetime$9.99
eigenCalc
No in-app purchases
Questions
Is Mechanical Formula free?
Is eigenCalc free?
Do Mechanical Formula or eigenCalc have ads?
Which is updated more often, Mechanical Formula or eigenCalc?
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