Comparison

Flat Metal Patterns vs Sheet Metal Calculator

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

Head to head
About

Flat Metal Patterns

This app simplifies metal pattern creation with precise mathematical calculations, saving time and reducing errors compared to manual methods. It offers various pattern types, unit conversions, and smart calculation features for both experienced professionals and beginners.

Highlights
  • Automated pattern calculation
  • 20+ different pattern types
  • Diameter-Circumference conversion
  • Pipe and insulation reference tables
  • Smart calculator for fractions/decimals
  • Scale feature for large patterns
Read full description

Flat Metal Patterns is a metal pattern calculation program that helps us save time making the pattern and avoids possible errors that we may have when drawing the pattern by hand. You can also find products, tools and accessories online for the branch of industrial insulation. This application is aimed at experts, inexperienced and beginners; within the application you can find video tutorials that will guide you through the process of how to use the calculated pattern. For people who are experienced in tracing a pattern by hand, it will help them to avoid mistakes, calculate the pattern in seconds, and thus save time. The pattern calculation program is made based on mathematical calculations and converting those calculations into the pattern that we are used to work with. Inside you can find up to 20 different patterns, as well as Diameter - Circumference calculation, Pipe - Insulation reference tables and a length units calculator. Circumference-Diameter - The application works mainly with circumference values. Additionally, the application accepts diameter values that are converted to circumference. Pipe size - If you have the exact data of a pipe, the application has the ability to determine the exact circumference of the pipe. Smart calculator - Extremely important for specific operations on known fractions and decimals. This means that the calculator accepts the fractions of a conventional tape measure, and returns the results in the same way. Scale - An extremely important feature of the application that makes it easy for us to manufacture large-size patterns in parts. Terms of use: https://flatmetalpatterns.com/terms-and-conditions/

About

Sheet Metal Calculator

This app simplifies sheet metal calculations for professionals and DIYers. It helps determine material thickness, size, weight, bend allowances, and cut lengths. Features include material selection, unit conversions, and geometric shape calculations.

Highlights
  • Material selection database
  • Thickness and size calculations
  • Accurate weight estimations
  • Bend allowance and K-factor calculation
  • Cut length and offcut optimization
  • Unit conversion tools
  • Geometric shape calculations
Features
Read full description

The Sheet Metal Calculator App is a powerful and user-friendly tool designed for anyone working with sheet metal, whether you're a professional metalworker, a DIY enthusiast, or a student learning the trade. This versatile app is engineered to simplify complex calculations, streamline your metalwork projects, and help you save time and resources. With a range of features and a user-friendly interface, it's the go-to tool for anyone involved in the world of sheet metal. Key Features: Material Selection: Choose from a comprehensive database of common sheet metal materials, including steel, aluminum, stainless steel, and more. Input custom material properties if needed, ensuring accurate calculations. Thickness and Size Calculations: Easily calculate the required sheet thickness for your specific project based on factors like load, span, and deflection. Determine the optimal sheet size and dimensions for your design, taking into account wastage and project constraints. Weight Estimations: Get accurate estimates of the weight of your sheet metal based on material, thickness, and dimensions, helping with transport and cost considerations. Bend Allowance and K-Factor: Calculate precise bend allowances and K-factors for accurate bending and forming operations. Support for various bending methods, including air bending and coining. Cut Lengths and Offcuts: Determine the length of sheet metal needed for your project, accounting for the material that will be removed in the cutting process. Minimize waste by identifying optimal cut patterns to reduce offcuts. Conversion Tools: Seamlessly convert between different units of measurement (e.g., inches to millimeters, pounds to kilograms) to ensure consistency in your calculations. Geometric Shape Calculations: Calculate the surface area and other geometric properties of various shapes (rectangles, circles, triangles) to simplify design and fabrication. With the Sheet Metal Calculator App, you can streamline your metalwork projects, reduce errors, and increase efficiency. Whether you're designing HVAC ducts, working on automotive repairs, or crafting custom metal art, this app is an indispensable tool for anyone in the sheet metal industry. Make precise, informed decisions and simplify complex calculations with ease. In app purchase included : Weekly, Monthly and Yearly Subscription included Privacy policy : https://chatlyst.in/privacy.html Terms and condition : https://chatlyst.in/tcondition.html

Screenshots

Flat Metal Patterns4 screens
Sheet Metal Calculator4 screens

Verdict

The call

The clearest difference is review sentiment: Flat Metal Patterns at 83% against Sheet Metal Calculator's 0%. Flat Metal Patterns also leads on rating (4.4 vs 1.4) and update cadence (every 5 weeks vs every 4 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flat Metal Patterns sells 3 in-app purchases, starting at $7.99 per month and Sheet Metal Calculator sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Flat Metal Patterns holds the better App Store score, 4.4 against 1.4. Both are backed by a comparable volume of ratings — 27 and 9 respectively. Written reviews point the same way: 83% of Flat Metal Patterns's written reviews are positive against 0% of Sheet Metal Calculator's.

UpkeepUpdate frequency

Flat Metal Patterns ships an update every 5 weeks, Sheet Metal Calculator every 4 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
Flat Metal Patterns versus Sheet Metal Calculator: the parameters behind the verdict, then further details
ParameterFlat Metal PatternsSheet Metal Calculator
PriceFreeFree
Rating4.4 (27 ratings) — better1.4 (9 ratings)
Positive reviews83.3% of reviews — better0.0% of reviews
Number of ratings27 — better9
Update frequencyEvery 5 weeks — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemium — betterPaid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.013.0
Further details — not scored
Size135 MB39 MB
Age rating4+4+
DeveloperIgnacio Renteria-MolinaKantaben Gorasiya

Customer experience

Flat Metal Patterns

All ratings25 ratings
Positive88.0%
Neutral0.0%
Negative12.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

Sheet Metal Calculator

All ratings9 ratings
Positive11.1%
Neutral0.0%
Negative88.9%
Written reviews5 reviews
Positive0.0%
Neutral20.0%
Negative80.0%

In-app purchases

3 purchases

Flat Metal Patterns

Subscriptions3
  • One month subscription$7.991 Month
  • 3 months subscription$19.993 Months
  • 6 month subscription$38.996 Months
3 purchases

Sheet Metal Calculator

Subscriptions3
  • Weekly$3.997 Days
  • Monthly$8.991 Month
  • Yearly$17.991 Year

Questions

Is Flat Metal Patterns free?
Flat Metal Patterns is free to download, with in-app purchases available.
Is Sheet Metal Calculator free?
Sheet Metal Calculator is free to download, with in-app purchases available.
Which has better reviews, Flat Metal Patterns or Sheet Metal Calculator?
Flat Metal Patterns is rated higher. Flat Metal Patterns averages 4.4 out of 5 from 27 ratings, while Sheet Metal Calculator averages 1.4 from 9 ratings.
Do Flat Metal Patterns or Sheet Metal Calculator have ads?
Neither Flat Metal Patterns nor Sheet Metal Calculator shows ads.
Which is updated more often, Flat Metal Patterns or Sheet Metal Calculator?
Flat Metal Patterns ships an update every 5 weeks, and Sheet Metal Calculator every 4 months. Most recently, Flat Metal Patterns was updated on October 20, 2026 and Sheet Metal Calculator on October 24, 2026.

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