Comparison

Flat Pattern & Bend Calculator vs Elbow Calculator

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

Head to head
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

About

Elbow Calculator

This engineering tool provides specialized calculators for pipe fitters, fabricators, and engineers. It quickly computes elbow dimensions, cut lengths, offsets, weight, and development layouts, saving time and improving precision for piping, duct fabrication, and workshop projects.

Highlights
  • Pipe elbow length calculation
  • Elbow weight estimation
  • Mitered elbow segment calculation
  • Pipe offset calculation
  • Sheet metal duct elbow development
  • Metric and inch unit support
  • Offline functionality
Features
Read full description

Elbow Calculator is a complete engineering tool designed for pipe fitters, fabricators, mechanical engineers, and HVAC professionals. The app provides multiple specialized calculators to quickly compute elbow dimensions, cut lengths, offsets, weight, and development layouts with accurate results. Whether you are working on piping systems, duct fabrication, or workshop projects, this app helps you save time, reduce manual calculations, and improve precision in daily engineering tasks. Key Calculators Included Pipe Elbow Length Calculator – Calculate centerline, inner, and outer arc lengths Elbow Weight Calculator – Estimate elbow weight based on diameter, thickness, and material Mitered Elbow Calculator – Determine segment angles and cut lengths Pipe Offset Calculator – Calculate travel length and offsets using elbows Elbow Centerline Radius Calculator – Quickly compute CLR values for different elbow types Sheet Metal / Duct Elbow Development – Generate layout measurements for fabrication Angle & Cut Calculation Tools – Accurate angle calculations for workshop use Features Simple and fast engineering calculations Supports multiple elbow angles (30°, 45°, 60°, 90° and custom) Metric and inch unit support Clean and easy-to-use interface Designed for pipe fitters, fabricators, and engineers Works offline anytime on site or in the workshop Elbow Calculator is the ideal tool for professionals who need quick, reliable elbow calculations for piping, ducting, and fabrication projects. In app purchase included : Lifetime Premium Privacy policy : https://privacypolicy50.wordpress.com/privacy-policy-subscription/ Terms and condition :https://privacypolicy50.wordpress.com/terms-and-condition/

Screenshots

Flat Pattern & Bend Calculator4 screens
Elbow Calculator4 screens

Verdict

The call

The clearest difference is rating: Elbow Calculator at 5.0 against Flat Pattern & Bend Calculator's 4.3. Elbow Calculator also leads on iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and ads 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 Pattern & Bend Calculator sells 2 in-app purchases, starting at $4.99 per month and Elbow Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Elbow Calculator holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

UpkeepUpdate frequency

Flat Pattern & Bend Calculator ships an update every 4 months, Elbow Calculator every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 7 level
Flat Pattern & Bend Calculator versus Elbow Calculator: the parameters behind the verdict, then further details
ParameterFlat Pattern & Bend CalculatorElbow Calculator
PriceFreeFree
Rating4.3 (4 ratings)5.0 (2 ratings) — better
Number of ratings4 — better2
Update frequencyEvery 4 months — betterEvery 5 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.013.0 — better
Further details — not scored
Size16 MB57 MB
Age rating4+4+
DeveloperAdityaKumar PatelShital Gorasiya

In-app purchases

2 purchases

Flat Pattern & Bend Calculator

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

Elbow Calculator

One-time1
  • Lifetime Purchase$5.99

Questions

Is Flat Pattern & Bend Calculator free?
Flat Pattern & Bend Calculator is free to download, with in-app purchases available.
Is Elbow Calculator free?
Elbow Calculator is free to download, with in-app purchases available.
Which has better reviews, Flat Pattern & Bend Calculator or Elbow Calculator?
Elbow Calculator is rated higher. Flat Pattern & Bend Calculator averages 4.3 out of 5 from 4 ratings, while Elbow Calculator averages 5.0 from 2 ratings.
Do Flat Pattern & Bend Calculator or Elbow Calculator have ads?
Neither Flat Pattern & Bend Calculator nor Elbow Calculator shows ads.
Which is updated more often, Flat Pattern & Bend Calculator or Elbow Calculator?
Flat Pattern & Bend Calculator ships an update every 4 months, and Elbow Calculator every 5 months. Most recently, Flat Pattern & Bend Calculator was updated on October 24, 2026 and Elbow Calculator on October 25, 2026.

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