# PDF Field Guide vs Sheet Metal Layout

The clearest difference is update cadence: Sheet Metal Layout at every 11 days against PDF Field Guide's monthly. Sheet Metal Layout also leads on iOS requirement (13.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDF Field Guide sells 2 one-off in-app purchases and Sheet Metal Layout sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PDF Field Guide ships an update monthly, Sheet Metal Layout every 11 days. The most recent releases landed on September 12, 2026 and August 5, 2026 respectively.

## The numbers

| Metric | PDF Field Guide | Sheet Metal Layout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdf-field-guide/id6475620684/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 11 days** |
| Monetization | Free | — |
| Size | 1 MB | 29 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Heidi Paul](https://appshunter.io/developer/1724530685) | [Gun woo Kim](https://appshunter.io/developer/1700263119) |

## What reviewers say

### PDF Field Guide

[App page](https://appshunter.io/ios/app/pdf-field-guide/id6475620684)

Quickly access, search, and share your essential PDF documents. Organize and import files for offline viewing, and convert images into searchable PDFs. Smart zoom and full-screen reading enhance your experience.

**Highlights:** Organize and group documents, Import PDFs for offline viewing, Create searchable PDFs from images, Smart zoom and full-screen reading, Keyword search and table of contents, Share documents via multiple methods

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Pass | $1.99 | one-time |
| Pro Pass | $4.99 | one-time |


### 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 |


## Frequently asked questions

### Is PDF Field Guide free?

PDF Field Guide is free to download, with in-app purchases available.

### Is Sheet Metal Layout free?

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

### Do PDF Field Guide or Sheet Metal Layout have ads?

Neither PDF Field Guide nor Sheet Metal Layout shows ads.

### Which is updated more often, PDF Field Guide or Sheet Metal Layout?

PDF Field Guide ships an update monthly, and Sheet Metal Layout every 11 days. Most recently, PDF Field Guide was updated on September 12, 2026 and Sheet Metal Layout on August 5, 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.*