Comparison

CargoSurveyor Tools vs Oil density

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CargoSurveyor Tools

This app provides a comprehensive toolset for cargo and bunker surveyors, streamlining the process of creating various industry-standard reports. It replaces physical documents and laptops, allowing for on-the-go data entry and report generation with customizable units and standards.

Highlights
  • Generate ullage, transfer, and bunker survey reports
  • Create notices of discrepancy and statements of facts
  • Support for OBQ and ROB quantity calculations
  • Configurable wedge calculator
  • Customizable report templates with company logos
  • Email reports as PDF attachments
  • Supports SI Metric and Imperial units
Features
Read full description

The most complete toolset for cargo and bunker surveyors, as well as other professionals in the oil industry! The app replaces laptop, hard copy ASTM tables and printed company forms used by cargo surveyors on board oil tankers. Do your complete cargo survey with this app and produce: - ullage reports - transfer summaries - bunker survey reports - notices of discrepancy - statements of facts - VEF reports - slop reports - sampling reports - preloading reports - reference heights and raw measurements reports - OBQ and ROB reports - time sheets - Hatch and cargo valve sealing records - Records of heating coil tightness testing - Records of Discharge Agreements - ship particulars Reports can be emailed directly from the app as a pdf attachment, and can be saved automatically to the camera roll as png files, which can be transferred to a desktop computer for printing. Also file sharing is enabled so users can download the pdf files using iTunes. All reports can be written using either SI Metric or Imperial standards, using mixed units in the respective editors as required by the user. The user can e.g. enter temperatures in deg C while producing an ullage report, but have the report printed using deg F by setting the environment to Imperial standard etc. Weights and volumes can be calculated using both SI metric and Imperial standards, and both the ASTM 1980 and 2004 version tables are included for the user to choose from. The app can calculate for crude oil, products, lubrication oils and special applications such as denatured ethanol. To assist with OBQ/ROB quantity calculation, a configurable wedge calculator is included which accepts input in both SI Metric and Imperial units. The user can choose whether to use table volume data or tank dimensions for the wedge calculation. In the general settings screen the user can choose whether calculations are done using Si Metric or Imperial units, and whether ASTM tables version 1980 or 2004 is used. All calculations are done conform the latest API MPMS recommendations. In the report settings screen the user can import his company logo by emailing his logo picture to the phone and saving it in the camera roll. At any one time two logos can be saved, one as the default and one as the active logo. Also in the report settings screen two default email addresses can be entered using the address book. The notices of discrepancy and statement of facts section contains a number of templates as well as a fully customisable version of each. Ullage reports are fully configurable regarding number of tanks (maximum is 23 tanks), with as many grades as required, and ullages/temperatures/volumes/densities can be entered as either SI Metric or Imperial units. Inline conversion for all of these can be done within the app by pressing the appropriate unit button. There is no limit to the number of reports that can be saved. Existing reports can be copied and used as a template for the next project. The user can name any report that he creates in any way he likes, bearing in mind that spaces are automatically replaced with underscores, and names should only start with a letter, not a number or other character. A bottom lines calculator as well as a pre-cargo matrix (for checking suitability to load the next cargo and check tank cleaning requirements) have been added to the app.

About

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.

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
Read full description

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.

Screenshots

CargoSurveyor Tools4 screens
Oil density3 screens

Verdict

The call

The clearest difference is price: Oil density at Free against CargoSurveyor Tools's $11.99. CargoSurveyor Tools's advantage is rating (3.5 vs 1.0) and in-app purchases (none vs 2). On ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Oil density is free to download; CargoSurveyor Tools costs $11.99 up front. Oil density sells 2 one-off in-app purchases. CargoSurveyor Tools asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CargoSurveyor Tools holds the better App Store score, 3.5 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

CargoSurveyor Tools ships an update every 2 months, Oil density every 47 months. The most recent releases landed on October 21, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
CargoSurveyor Tools versus Oil density: the parameters behind the verdict, then further details
ParameterCargoSurveyor ToolsOil density
Price$11.99Free — better
Rating3.5 (2 ratings) — better1.0 (1 ratings)
Positive reviews—0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 2 months — betterEvery 47 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS16.6 — better17.0
Further details — not scored
Size12 MB7 MB
Age rating+44+
Developerron mooring昆 张

Customer experience

CargoSurveyor Tools

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

Oil density

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

CargoSurveyor Tools

No in-app purchases

2 purchases

Oil density

One-time2
  • Monthly card$2.99
  • Lifetime Card$8.99

Questions

Is CargoSurveyor Tools free?
CargoSurveyor Tools costs $11.99, with no in-app purchases.
Is Oil density free?
Oil density is free to download, with in-app purchases available.
Which has better reviews, CargoSurveyor Tools or Oil density?
CargoSurveyor Tools is rated higher. CargoSurveyor Tools averages 3.5 out of 5 from 2 ratings, while Oil density averages 1.0 from 1 ratings.
Do CargoSurveyor Tools or Oil density have ads?
Neither CargoSurveyor Tools nor Oil density shows ads.
Which is updated more often, CargoSurveyor Tools or Oil density?
CargoSurveyor Tools ships an update every 2 months, and Oil density every 47 months. Most recently, CargoSurveyor Tools was updated on October 21, 2026 and Oil density on October 9, 2026.

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