Comparison

Surface Area Calculator + Cost vs Flat Pattern & Bend Calculator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Surface area calculation for 11 shapes
  • Material cost estimation
  • Multiple unit support
  • Results in various units
  • Subscription for unlimited access
Features
Read full description

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

About

Flat Pattern & Bend Calculator

Calculate precise flat pattern dimensions for various fabricated metal components, from simple bends to complex shapes like elbows, lobsterbacks, and cones. This tool assists fabricators, welders, and engineers in generating accurate layouts for piping, ducting, and pressure vessels.

Highlights
  • Flat pattern calculations for bends, elbows, tees, cones
  • Supports complex shapes: truncated cones, pyramids, screw flights
  • Transition layouts: round-to-square, square-to-round
  • Fast, reliable, and accurate results
  • Unique and copyright-safe solutions
Features
Read full description

Quickly and accurately calculate flat pattern dimensions for a wide range of fabricated components. From simple bends to complex transitions, this app helps fabricators, welders, and engineers generate precise flat layouts for elbows, lobsterback bends, frustum cones, truncated pipes, and more. Advanced triangulation methods make it easy to handle screw flights, angled pipe cuts, pyramids, and other complex shapes. Key Features: * Flat pattern calculations for bends, elbows, tees, cones, and pipe intersections * Supports advanced shapes: truncated cones, pyramids, screw flights * Transition layouts: round-to-square, square-to-round, rectangle-to-round * Fast, reliable, and accurate results for metal fabrication workflows Ideal For: * Pressure vessel and tank fabrication * Piping, ducting, welding, and insulation * Industrial, structural, and mechanical fabrication * Process equipment design and layout work Note: All designs, calculations, and layouts are originally created by our team to ensure you receive fully unique and copyright-safe solutions. 
Information about the auto-renewable nature of the subscription. Confirm subscription: Payment will be charged to iTunes Account at confirmation of purchase. Manage subscriptions: Users can manage or unsubscribe in iTunes & App Store account management in the phone system settings. Auto-renewal: Apple iTunes account will be charged for renewal within 24-hours prior to the end of the current subscription period. To cancel the renewal, please turn off auto-renew manually at least 24-hours before the end of the period. No cancellation of the current subscription is allowed during the active subscription period. You can go to the Account Settings to cancel the renewal before the trial ends. The current free trial will be forfeited when you purchase a subscription to the premium version before the trial period ends. By using the app, you confirm that you acknowledge and accept our Privacy Policy and Terms of Service: Privacy Policy: https://sites.google.com/view/privacy-policy1331/privacy Terms of Service: https://sites.google.com/view/privacy-policy1331/terms

Screenshots

Surface Area Calculator + Cost3 screens
Flat Pattern & Bend Calculator4 screens

Verdict

The call

The clearest difference is rating: Flat Pattern & Bend Calculator at 4.3 against Surface Area Calculator + Cost's 3.5. Surface Area Calculator + Cost's advantage is ratings volume (24 vs 4). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Surface Area Calculator + Cost sells 3 in-app purchases, starting at $1.99 per month and Flat Pattern & Bend Calculator sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flat Pattern & Bend Calculator holds the better App Store score, 4.3 against 3.5. That said, the two scores are not equally well evidenced: Surface Area Calculator + Cost has 24 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Surface Area Calculator + Cost ships an update every 6 months, Flat Pattern & Bend Calculator every 4 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 8 level
Surface Area Calculator + Cost versus Flat Pattern & Bend Calculator: the parameters behind the verdict, then further details
ParameterSurface Area Calculator + CostFlat Pattern & Bend Calculator
PriceFreeFree
Rating3.5 (24 ratings)4.3 (4 ratings) — better
Positive reviews22.2% of reviews—
Number of ratings24 — better4
Update frequencyEvery 6 monthsEvery 4 months — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size4 MB16 MB
Age rating4+4+
DeveloperPhan Nhat ĐangAdityaKumar Patel

Customer experience

Surface Area Calculator + Cost

All ratings24 ratings
Positive62.5%
Neutral4.2%
Negative33.3%
Written reviews9 reviews
Positive22.2%
Neutral11.1%
Negative66.7%

Flat Pattern & Bend Calculator

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Surface Area Calculator + Cost

Subscriptions2
  • Premium monthly package$1.991 Month
  • Annual Premium Package$14.991 Year
One-time1
  • Remove ads$19.99
2 purchases

Flat Pattern & Bend Calculator

Subscriptions2
  • Premium Monthly Access$4.991 Month
  • Premium Yearly Access3 Days trial$29.991 Year

Questions

Is Surface Area Calculator + Cost free?
Surface Area Calculator + Cost is free to download, with in-app purchases available.
Is Flat Pattern & Bend Calculator free?
Flat Pattern & Bend Calculator is free to download, with in-app purchases available.
Which has better reviews, Surface Area Calculator + Cost or Flat Pattern & Bend Calculator?
Flat Pattern & Bend Calculator is rated higher. Surface Area Calculator + Cost averages 3.5 out of 5 from 24 ratings, while Flat Pattern & Bend Calculator averages 4.3 from 4 ratings.
Do Surface Area Calculator + Cost or Flat Pattern & Bend Calculator have ads?
Neither Surface Area Calculator + Cost nor Flat Pattern & Bend Calculator shows ads.
Which is updated more often, Surface Area Calculator + Cost or Flat Pattern & Bend Calculator?
Surface Area Calculator + Cost ships an update every 6 months, and Flat Pattern & Bend Calculator every 4 months. Most recently, Surface Area Calculator + Cost was updated on November 3, 2026 and Flat Pattern & Bend Calculator on October 30, 2026.

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