StrucMaster vs Polygon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StrucMaster
This app allows users to define and analyze structural mechanics problems. It offers powerful functions for internal force diagrams, dynamics, influence lines, and stability analysis, with detailed solving steps provided by artificial intelligence. Users can build complex structures with non-integer element lengths.
- Define custom structures
- Internal force diagram analysis
- Dynamics and stability analysis
- Influence line calculations
- AI-powered detailed solving steps
- MultiSelect command for complex structures
- Non-integer element length support
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You will enjoy the procedure of defining your own structure with only several steps and have it analyzed by this StrucMaster. Powerful functions inside can deal with internal force diagram, dynamics, influence line and stability analysis. The Intelligence part can provide detailed solving steps. The MultiSelect command can help you establish the large structure just as in CAD, it can also help designers define structures with non-integer length elements. All of the procedures are done by the artificial intelligence in your iPhone, no matter whether you are connected to the Internet. Convenient, powerful, no delays, what are you waiting for? If you have any question, you can contact us by our e-mail address structuremaster@163.com or tell us in Facebook. Facebook: https://www.facebook.com/StrucMaster
Polygon
Calculate complex properties of any polygonal figure, including centroids, moments of inertia, and perimeter. Simply input vertex coordinates for instant results, saving significant time on tedious calculations.
- Polygon Centroids
- Moments of Inertia (Ix, Iy, Ixy)
- Polar Moment of Inertia
- Radius of Gyration
- Principal Moments of Inertia
- Area and Perimeter
- Side Lengths
- Hollow Sections
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Polygon will allow you to calculate complex and tedious calculations related to any polygonal figure, whether concave or convex, regular or irregular, in a simple and instantaneous way: - Polygon Centroids - Moments of Inertia Ix, Iy, Ixy - Polar Moment of Inertia - Radius of gyration - Principal Moments of Inertia (Iu, Iv and their respective angles) - Area and Perimeter of the polygon - Length of each side of the polygon - Even incorporate hollow sections - Rotate the axes to a custom angle - Define new custom axes at any point - and much more You just have to enter the coordinates of the vertices of your polygon and press the button and it will immediately calculate all the previous properties, saving valuable time. Subscription Terms: Payment will be charged to Itunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turnerd off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hour prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Setting after purchase. No cancellation of the current subscription is allowed during active subscription period. For in-app purchases and subscriptions, see Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Polygon at weekly against StrucMaster's every 14 months. StrucMaster's advantage is ratings volume (3 vs 1) and iOS requirement (8.0 vs 17.0). On price, rating, ads and in-app purchases 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. StrucMaster sells 1 one-off in-app purchase and Polygon sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 3.0 for StrucMaster against 3.0 for Polygon. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
StrucMaster ships an update every 14 months, Polygon weekly. The most recent releases landed on October 7, 2026 and September 20, 2026 respectively.
| Parameter | StrucMaster | Polygon |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (3 ratings) | 3.0 (1 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 14 months | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 101 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | 颖达 陈 | Adrian Caballero |
Customer experience
StrucMaster
Polygon
In-app purchases
StrucMaster
- Advanced Functions Forever$3.99
Polygon
- Pro Access$2.991 Month
- Pro Access$4.996 Months
- Pro Access$6.991 Year
- Pro Access$9.99
Questions
Is StrucMaster free?
Is Polygon free?
Which has better reviews, StrucMaster or Polygon?
Do StrucMaster or Polygon have ads?
Which is updated more often, StrucMaster or Polygon?
Other comparisons
