# Sheet Metal Layout vs Unbend Flat Pattern Calculator

The clearest difference is device support: Sheet Metal Layout at 3 against Unbend Flat Pattern Calculator's 1. Sheet Metal Layout also leads on iOS requirement (13.0 vs 16.4). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Sheet Metal Layout 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.

Sheet Metal Layout ships an update every 11 days, Unbend Flat Pattern Calculator fortnightly. The most recent releases landed on September 15, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Sheet Metal Layout | Unbend Flat Pattern Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Fortnightly |
| Size | 29 MB | 57 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Gun woo Kim](https://appshunter.io/developer/1700263119) | [Omer Faruk BAGCI](https://appshunter.io/developer/1850264269) |

## What reviewers say

### Sheet Metal Layout

[App page](https://appshunter.io/ios/app/sheet-metal-layout-patterns/id6791592420)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sheet Metal Pro | $12.99 | 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 Sheet Metal Layout free?

Sheet Metal Layout 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 Sheet Metal Layout or Unbend Flat Pattern Calculator have ads?

Neither Sheet Metal Layout nor Unbend Flat Pattern Calculator shows ads.

### Which is updated more often, Sheet Metal Layout or Unbend Flat Pattern Calculator?

Sheet Metal Layout ships an update every 11 days, and Unbend Flat Pattern Calculator fortnightly. Most recently, Sheet Metal Layout was updated on September 15, 2026 and Unbend Flat Pattern Calculator on October 2, 2026.

---

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