Oil density vs VCF Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oil density
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.
- 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
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The professional petroleum metering calculation tool of GB/T 1885-1998 national standard is adopted to automatically query the standard density table of the petroleum metering meter, convert the apparent density measured by the petroleum densitometer into the standard density, and calculate the volume correction factor (VCF) at the same time, so as to calculate the standard volume and mass of oil products, which improves the efficiency and calculation accuracy compared with manual query.
VCF Pro
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VCFPro is a petroleum cargo calculator for tanker crews, cargo surveyors, and shipper representatives — at sea or on shore. It replaces paper correction tables with instant, precise calculations, in an interface modeled on the handheld calculators the industry already knows. Enter a reading by °API gravity, relative density, or density, and instantly get: • VCF (volume correction factor) • Full volume-weight results — barrels, cubic meters, metric tons and long tons, in air and in vacuum • Crude, Product, and Lube table families • °F / °C switching for any region • Results matched to industry-standard petroleum measurement tables, to the decimal No more flipping through table books. Enter your reading, get your numbers — fast, precise, and ready wherever the job takes you.
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Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Oil density | VCF Pro |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 47 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 7 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | 昆 张 | Ender ISIKLI |
In-app purchases
Oil density
- Monthly card$2.99
- Lifetime Card$8.99
VCF Pro
No in-app purchases









