Surface Area Calculator + Cost vs Polygon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Surface Area Calculator + Cost
Calculate the surface area of various 3D geometric shapes and get an estimated cost for materials. Supports multiple units for calculations and results.
- Surface area calculation for 11 shapes
- Material cost estimation
- Multiple unit support
- Results in various units
- Subscription for unlimited access
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Our app helps you to calculate the surface area of several common shapes. This tool also provides a cost of materials estimate. We offer a diverse set of units suitable for almost every country. The results of each calculation are also expressed in many units of different area. We support you with a variety of different types: - Cone - Cube - Sphere - Pyramid - Cylinder - Octahedron - Rectangular - Truncated cone - Triangular Prism - Hexagonal Prism - Triangular Pyramid - Hemispherical Shape SUBSCRIPTION INFORMATION This subscription package offers users unlimited access to all app features throughout the subscription period. • Payment will be charged to iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. • Account will be charged for renewal within 24 hours 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 Settings after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy: https://13520178.github.io/SurfaceAreaCalc/policy.html Terms of Use: https://13520178.github.io/SurfaceAreaCalc/terms.html We are happy to serve! If you have any requests or suggestions, do not hesitate to contact us. Email: phannhatd@gmail.com
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 rating: Surface Area Calculator + Cost at 3.5 against Polygon's 3.0. Surface Area Calculator + Cost also leads on ratings volume (24 vs 1) and iOS requirement (15.0 vs 17.0). Polygon's advantage is update cadence (weekly vs every 6 months). On price, ads, in-app purchases 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. Surface Area Calculator + Cost sells 3 in-app purchases, starting at $1.99 per month 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.
Surface Area Calculator + Cost holds the better App Store score, 3.5 against 3.0. That said, the two scores are not equally well evidenced: Surface Area Calculator + Cost has 24 ratings behind it against 1, so its average is the more settled of the two.
Surface Area Calculator + Cost ships an update every 6 months, Polygon weekly. The most recent releases landed on October 1, 2026 and September 20, 2026 respectively.
| Parameter | Surface Area Calculator + Cost | Polygon |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (24 ratings) — better | 3.0 (1 ratings) |
| Positive reviews | 22.2% of reviews | — |
| Number of ratings | 24 — better | 1 |
| Update frequency | Every 6 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 | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 29 MB |
| Age rating | 4+ | 4+ |
| Developer | Phan Nhat Đang | Adrian Caballero |
Customer experience
Surface Area Calculator + Cost
Polygon
In-app purchases
Surface Area Calculator + Cost
- Premium monthly package$1.991 Month
- Annual Premium Package$14.991 Year
- Remove ads$19.99
Polygon
- Pro Access$2.991 Month
- Pro Access$4.996 Months
- Pro Access$6.991 Year
- Pro Access$9.99
Questions
Is Surface Area Calculator + Cost free?
Is Polygon free?
Which has better reviews, Surface Area Calculator + Cost or Polygon?
Do Surface Area Calculator + Cost or Polygon have ads?
Which is updated more often, Surface Area Calculator + Cost or Polygon?
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