# Oil density vs VCF Pro

The clearest difference is price: Oil density at Free against VCF Pro's $3.99. VCF Pro's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

Oil density is free to download; VCF Pro costs $3.99 up front. Oil density sells 2 one-off in-app purchases. VCF Pro asks for nothing beyond the download.

## The numbers

| Metric | Oil density | VCF Pro |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/oil-density/id1641733273/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 47 months | — |
| Monetization | Free | — |
| Size | 7 MB | 10 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [昆 张](https://appshunter.io/developer/517645105) | [Ender ISIKLI](https://appshunter.io/developer/6789871599) |

## What reviewers say

### Oil density

[App page](https://appshunter.io/ios/app/oil-density/id1641733273)

This tool calculates the standard density of oil products based on measured apparent density. It automatically queries density tables and computes volume correction factors for accurate standard volume and mass calculations. Improve efficiency and accuracy compared to manual methods.

**Highlights:** Calculates standard oil density, Queries petroleum density tables, Computes volume correction factor (VCF), Calculates standard volume and mass, Adheres to GB/T 1885-1998 national standard

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly card | $2.99 | one-time |
| Lifetime Card | $8.99 | one-time |


### VCF Pro

[App page](https://appshunter.io/ios/app/vcf-pro/id6789871597)

**In-app purchases:** none


## Frequently asked questions

### Is Oil density free?

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

### Is VCF Pro free?

VCF Pro costs $3.99, with no in-app purchases.

### Do Oil density or VCF Pro have ads?

Neither Oil density nor VCF Pro 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.*