Comparison

Petroleum VCF Basic vs Becoming Canadian

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

Head to head
About

Petroleum VCF Basic

Calculate volume and density changes for various petroleum products due to temperature and pressure variations. Supports crude oil, refined products, and specialized oils. Requires minimum density and temperature data, with optional volume input.

Highlights
  • Volume and density change calculations
  • Supports crude oil, refined products, and lube oils
  • Calculations based on temperature and pressure
  • Handles various density units
  • Optional volume input for corrected volume
  • Saves and recalls last performed calculation
Read full description

This app provides volume and/or densities changes calculations due to temperature and pressure changes. Calculations are for Crude Oil, Refined Products, Lube Oils, and Specialized products. Refined Products include gasolines, alkylate, naphtha, jet fuel, kerosene, diesel. Minimum data requirements are: Density (API, S.G. or kg/m3), temperature (°F) at which density was measured and pressure (PSI). A volume is not required, but if entered, the corrected volume will be calculated. The volume measurement conditions need be indicated: either at (1) the density temperature and pressure or (2) at the Alternate temperature and pressure. Volume units of measure are not required. The latest case performed is saved and can be recalled from memory. Base conditions are 60°F and 0 PSI . Based on API published correlations.

About

Becoming Canadian

Features
Read full description

Becoming Canadian helps you pass the Canadian citizenship test and actually understand the answers. Practice hundreds of questions on Canada's history, government, rights, geography, symbols, and the economy. Every question is followed by a clear, plain-language explanation, so you learn the material instead of just memorizing it. PRACTICE - A bank of 250+ original-wording questions - 15 practice questions a day on the free plan; Premium is unlimited - Choose the categories you want to focus on - A plain-language explanation after every answer - Bookmark tricky questions to revisit TESTS - Every test is 20 questions, 15 to pass — matching the format of the real citizenship test - One free Standard Test a day, plus Mock Test 1 any time; Premium removes the limit - Optional 30-minute timer that auto-submits when time runs out - An adaptive test that targets your weakest categories (Premium) - A full category-by-category breakdown after every test - Export any result as a PDF with a fold-under answer key (Premium) STUDY - A Study Guide of key facts, plus a glossary of test terms - Citizenship Journey: every step from applying to the oath, with links to the official Government of Canada pages - Browse every question by category (Premium) - Flip-and-rate flashcards — and build your own decks, with notes on any question (Premium) - Set your test date for a day-by-day study plan and countdown (Premium) REVIEW - Your missed questions and bookmarks, gathered in one place - Practice drawn only from what you've missed or flagged - Smart Review brings back missed questions right before you'd forget them (Premium) PROGRESS & ACHIEVEMENTS - Your core stats free; per-category trends, full test history, and a readiness score with Premium - Daily streaks and a daily goal you set yourself - Badges for streaks, bookmarks, and mastering each category - Home Screen and Lock Screen widgets for your streak, goal, and weakest category APPLE WATCH - Practice from your wrist — attempts sync automatically to your iPhone STAY ON TRACK - A daily study reminder at a time you choose - An optional Question of the Day PREMIUM - Unlimited daily practice and unlimited Standard Tests - Every numbered Mock Test — the free plan includes Mock Test 1 - The adaptive test that targets your weakest categories - Smart Review spaced repetition, and browsing every question by category - Flashcards, your own decks and notes, and audio read-aloud - The test-date study plan and countdown - Detailed analytics — per-category trends, full test history, and your readiness score - PDF export of any test result PRIVACY - Your study progress and user-authored content stay on your device. - No advertising identifiers and nothing used for cross-app tracking. - Optional pseudonymous usage analytics and crash & performance diagnostics (all via Google Firebase) help us improve the app. Both are OFF by default, never include your answers, notes, bookmarks, or deck names, and can be withdrawn immediately in Settings. Becoming Canadian is an independent study aid. It is not affiliated with, endorsed by, or sponsored by the Government of Canada, and it does not guarantee that you'll pass the official test — always rely on official Government of Canada materials for your application. Requires iOS 17 or later. iPhone, iPad, and Apple Watch. Terms of Use (EULA): https://becomingcanadian.zarochintsev.com/terms Privacy Policy: https://becomingcanadian.zarochintsev.com/privacy

Screenshots

Petroleum VCF Basic4 screens
Becoming Canadian4 screens

Verdict

The call

The clearest difference is in-app purchases: Petroleum VCF Basic at none against Becoming Canadian's 3. Becoming Canadian's advantage is update cadence (every 2 days vs every 2 months) and device support (3 vs 1). On price, ads 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

Both are free to download. Becoming Canadian sells 3 in-app purchases, starting at $0.99 per 7 days. Petroleum VCF Basic asks for nothing beyond the download.

UpkeepUpdate frequency

Petroleum VCF Basic ships an update every 2 months, Becoming Canadian every 2 days. The most recent releases landed on June 4, 2026 and September 27, 2026 respectively.

Scorecard3 real differences · 6 level
Petroleum VCF Basic versus Becoming Canadian: the parameters behind the verdict, then further details
ParameterPetroleum VCF BasicBecoming Canadian
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPad, Apple Watch — better
Requires iOS16.1 — better17.0
Further details — not scored
Size2 MB10 MB
Age rating4+4+
DeveloperJose MaldonadoOleksandr Zarochintsev

In-app purchases

None

Petroleum VCF Basic

No in-app purchases

3 purchases

Becoming Canadian

Subscriptions3
  • Premium Weekly$0.997 Days
  • Premium Monthly$2.991 Month
  • Premium Yearly$19.991 Year

Questions

Is Petroleum VCF Basic free?
Petroleum VCF Basic is free to download, with no in-app purchases.
Is Becoming Canadian free?
Becoming Canadian is free to download, with in-app purchases available.
Do Petroleum VCF Basic or Becoming Canadian have ads?
Neither Petroleum VCF Basic nor Becoming Canadian shows ads.
Which is updated more often, Petroleum VCF Basic or Becoming Canadian?
Petroleum VCF Basic ships an update every 2 months, and Becoming Canadian every 2 days. Most recently, Petroleum VCF Basic was updated on June 4, 2026 and Becoming Canadian on September 27, 2026.

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