3D Time Zones vs VCF Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
3D Time Zones
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Discover time zones like never before with 3D Time Zones! This app lets you explore the world’s time zones in a stunning, interactive 3D view. With pinpoint accuracy and real-time updates for Daylight Saving Time changes, it’s always current. Enjoy a seamless experience—no internet required. Perfect for travelers, remote workers, or anyone curious about global time!
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.
Screenshots
Verdict
The clearest difference is price: 3D Time Zones at Free against VCF Pro's $3.99. 3D Time Zones also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.6). VCF Pro's advantage is ads (none vs shown). On in-app purchases 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
3D Time Zones is free to download; VCF Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 3D Time Zones | VCF Pro |
|---|---|---|
| Price | Free — better | $3.99 |
| Update frequency | Daily | — |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 12 MB | 10 MB |
| Age rating | 17+ | 4+ |
| Developer | PAOLO MARRONE | Ender ISIKLI |
In-app purchases
3D Time Zones
No in-app purchases
VCF Pro
No in-app purchases









