# Flat Pattern Pro vs Sheet Metal Calculator

The clearest difference is price: Sheet Metal Calculator at Free against Flat Pattern Pro's $9.99. Sheet Metal Calculator also leads on update cadence (every 4 months vs every 42 months) and iOS requirement (13.0 vs 16.1). Flat Pattern Pro's advantage is in-app purchases (none vs 3). On review sentiment, ads, monetization model and device support there is nothing between them.

Sheet Metal Calculator is free to download; Flat Pattern Pro costs $9.99 up front. Sheet Metal Calculator sells 3 in-app purchases, starting at $3.99 per 7 days. Flat Pattern Pro asks for nothing beyond the download.

Flat Pattern Pro ships an update every 42 months, Sheet Metal Calculator every 4 months. The most recent releases landed on October 1, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Flat Pattern Pro | Sheet Metal Calculator |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[1.4 (9 ratings)](https://appshunter.io/ios/app/sheet-metal-calculator/id6469767934/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 42 months | **Every 4 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 39 MB |
| Requires iOS | 16.1 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Imran Pinjara](https://appshunter.io/developer/1484488781) | [Kantaben Gorasiya](https://appshunter.io/developer/1640260396) |

## What reviewers say

### Flat Pattern Pro

[App page](https://appshunter.io/ios/app/flat-pattern-pro/id1489799915)

This app provides a comprehensive tool for calculating and developing fabrication layouts for a wide range of shapes. It helps minimize fabrication time and increase accuracy by offering user-friendly tools for complex designs.

**Highlights:** Fabrication layout development, Supports numerous shapes (pipes, cones, pyramids, spheres), Minimizes fabrication time, Increases accuracy, Offline functionality, Ad-free experience

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

**In-app purchases:** none


### Sheet Metal Calculator

[App page](https://appshunter.io/ios/app/sheet-metal-calculator/id6469767934)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $3.99 | per 7 days |
| Monthly | $8.99 | per month |
| Yearly | $17.99 | per year |


## Frequently asked questions

### Is Flat Pattern Pro free?

Flat Pattern Pro costs $9.99, with no in-app purchases.

### Is Sheet Metal Calculator free?

Sheet Metal Calculator is free to download, with in-app purchases available.

### Do Flat Pattern Pro or Sheet Metal Calculator have ads?

Neither Flat Pattern Pro nor Sheet Metal Calculator shows ads.

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

Flat Pattern Pro ships an update every 42 months, and Sheet Metal Calculator every 4 months. Most recently, Flat Pattern Pro was updated on October 1, 2026 and Sheet Metal Calculator on September 22, 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.*