Mass vs mechanical design engine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mass
This utility app calculates the mass of metal and plastic preforms directly on the field. It supports various preform and material types, offering metric and imperial measurement modes for convenience.
- 13 preform types
- 9 material types with alloys
- Graphical preform representation
- Metric and imperial modes
- Help section
- Easy to use
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Mass-Finder is designed to calculate the mass of metal and plastic preforms while on the field. Features: - 13 different preform types - 9 material types, each with it’s own alloy types - Graphical representation for each preform type - Help section - Metric and imperial measurement modes - Easy to use - Free updates If you have any suggestions or find any bugs, please send us an email at contact@solazdazen.com
mechanical design engine
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* To calculate basic thickness of cylindrical/rectangular pressure vessel including heads if input data such as pressure, temperature, inner diameter and material information. * flange data can be easily searched. * Profile steel information such as pipe, H, W, I and U-Beam. * Raw material information, that is chemical composition and mechanical properties, for example, ASTM A240 316L, EN10297-1, SUS316L and so on. * Size and shape information of every thread(iso/unf/pf/pt) and shackles(bow/d-type) * To calculate force and moment of solid mechanics according to support type.
Screenshots
Verdict
The clearest difference is update cadence: Mass at every 3 weeks against mechanical design engine's every 2 months. Mass also leads on iOS requirement (8.0 vs 13.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Mass ships an update every 3 weeks, mechanical design engine every 2 months. The most recent releases landed on June 7, 2026 and September 8, 2026 respectively.
| Parameter | Mass | mechanical design engine |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 7 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | SOLAZ DAZEN S.R.L. | gan dae choi |
In-app purchases
Mass
No in-app purchases
mechanical design engine
No in-app purchases
Questions
Is Mass free?
Is mechanical design engine free?
Do Mass or mechanical design engine have ads?
Which is updated more often, Mass or mechanical design engine?
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