# ElbowCalc vs Unbend Flat Pattern Calculator

The clearest difference is ads: ElbowCalc at none against Unbend Flat Pattern Calculator's shown. ElbowCalc also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). Unbend Flat Pattern Calculator's advantage is update cadence (fortnightly vs every 5 weeks). On price and in-app purchases there is nothing between them.

Both are free to download. ElbowCalc sells 1 one-off in-app purchase and Unbend Flat Pattern Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ElbowCalc ships an update every 5 weeks, Unbend Flat Pattern Calculator fortnightly. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ElbowCalc | Unbend Flat Pattern Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (7 ratings)](https://appshunter.io/ios/app/elbowcalc-flat-pattern-maker/id6753796014/reviews)** | — |
| Number of ratings | **7** | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 57 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | +4 | 4+ |
| Developer | [Sachinbhai Surani](https://appshunter.io/developer/1838685550) | [Omer Faruk BAGCI](https://appshunter.io/developer/1850264269) |

## What reviewers say

### ElbowCalc

[App page](https://appshunter.io/ios/app/elbowcalc-flat-pattern-maker/id6753796014)

This professional tool assists engineers and fabricators in quickly calculating and visualizing flat patterns for elbows and reducers. It provides instant pattern graphs with cut coordinates to streamline fabrication and minimize material waste.

**Highlights:** Calculate various elbow types, Generate flat pattern graphs, Supports reducer bends, Provides cut coordinates, Fast and precise calculations, Share and save results

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime premium | $19.99 | one-time |


### Unbend Flat Pattern Calculator

[App page](https://appshunter.io/ios/app/unbend-flat-pattern-calculator/id6797460542)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unbend Pro Unlock | $14.99 | one-time |


## Frequently asked questions

### Is ElbowCalc free?

ElbowCalc is free to download, with in-app purchases available.

### Is Unbend Flat Pattern Calculator free?

Unbend Flat Pattern Calculator is free to download, with in-app purchases available.

### Do ElbowCalc or Unbend Flat Pattern Calculator have ads?

Unbend Flat Pattern Calculator shows ads; ElbowCalc does not.

### Which is updated more often, ElbowCalc or Unbend Flat Pattern Calculator?

ElbowCalc ships an update every 5 weeks, and Unbend Flat Pattern Calculator fortnightly. Most recently, ElbowCalc was updated on September 28, 2026 and Unbend Flat Pattern Calculator on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*