# Learn Maya Numbers vs Petroleum VCF Basic

The clearest difference is price: Petroleum VCF Basic at Free against Learn Maya Numbers's $0.99. Petroleum VCF Basic also leads on rating (5.0 vs 3.0) and update cadence (every 2 months vs every 20 months). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Petroleum VCF Basic is free to download; Learn Maya Numbers costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Petroleum VCF Basic holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

Learn Maya Numbers ships an update every 20 months, Petroleum VCF Basic every 2 months. The most recent releases landed on September 8, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Learn Maya Numbers | Petroleum VCF Basic |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/learn-maya-numbers/id839907009/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/petroleum-vcf-basic/id6475608625/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 2 MB |
| Requires iOS | **15.6** | 16.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Manfred Breede](https://appshunter.io/developer/414696754) | [Jose Maldonado](https://appshunter.io/developer/1724473480) |

## What reviewers say

### Learn Maya Numbers

[App page](https://appshunter.io/ios/app/learn-maya-numbers/id839907009)

Explore the ancient Maya numeral system alongside modern decimal numbers. This app visually compares both positional notations, highlighting their unique place-value systems. It converts Maya numbers up to 1,279,999,999 into their decimal equivalents.

**Highlights:** Simultaneous display of Maya and decimal numbers, Visual comparison of place-value systems, Converts Maya numbers to decimal equivalents, Supports numbers up to 1,279,999,999, Explains differences in positional notation

**Features:** macOS Compatibility

**In-app purchases:** none


### Petroleum VCF Basic

[App page](https://appshunter.io/ios/app/petroleum-vcf-basic/id6475608625)

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn Maya Numbers free?

Learn Maya Numbers costs $0.99, with no in-app purchases.

### Is Petroleum VCF Basic free?

Petroleum VCF Basic is free to download, with no in-app purchases.

### Which has better reviews, Learn Maya Numbers or Petroleum VCF Basic?

Petroleum VCF Basic is rated higher. Learn Maya Numbers averages 3.0 out of 5 from 2 ratings, while Petroleum VCF Basic averages 5.0 from 2 ratings.

### Do Learn Maya Numbers or Petroleum VCF Basic have ads?

Neither Learn Maya Numbers nor Petroleum VCF Basic shows ads.

### Which is updated more often, Learn Maya Numbers or Petroleum VCF Basic?

Learn Maya Numbers ships an update every 20 months, and Petroleum VCF Basic every 2 months. Most recently, Learn Maya Numbers was updated on September 8, 2026 and Petroleum VCF Basic on June 4, 2026.

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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.*