# Pipe Diameter Calculators vs DocForge

The clearest difference is in-app purchases: Pipe Diameter Calculators at none against DocForge's 1. Pipe Diameter Calculators also leads on iOS requirement (12.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. DocForge sells 1 one-off in-app purchase. Pipe Diameter Calculators asks for nothing beyond the download.

## The numbers

| Metric | Pipe Diameter Calculators | DocForge |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 39 MB | 8 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ashvin Kevadiya](https://appshunter.io/developer/1756324971) | [donghyeong kim](https://appshunter.io/developer/6772890617) |

## What reviewers say

### Pipe Diameter Calculators

[App page](https://appshunter.io/ios/app/pipe-diameter-calculators/id6743020859)

**Features:** macOS Compatibility

**In-app purchases:** none


### DocForge

[App page](https://appshunter.io/ios/app/docforge-cad-and-doc-viewer/id6772890615)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DocForge Lifetime | $199.99 | one-time |


## Frequently asked questions

### Is Pipe Diameter Calculators free?

Pipe Diameter Calculators is free to download, with no in-app purchases.

### Is DocForge free?

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

### Do Pipe Diameter Calculators or DocForge have ads?

Neither Pipe Diameter Calculators nor DocForge shows ads.

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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.*