# ElePHPant vs Petroleum Engineering+

The clearest difference is price: Petroleum Engineering+ at Free against ElePHPant's $5.99. Petroleum Engineering+ also leads on update cadence (monthly vs every 2 months). ElePHPant's advantage is in-app purchases (none vs 6) and iOS requirement (15.1 vs 17.0). On ads and device support there is nothing between them.

Petroleum Engineering+ is free to download; ElePHPant costs $5.99 up front. Petroleum Engineering+ sells 6 in-app purchases, starting at $9.99 per month. ElePHPant asks for nothing beyond the download.

ElePHPant ships an update every 2 months, Petroleum Engineering+ monthly. The most recent releases landed on September 9, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | ElePHPant | Petroleum Engineering+ |
| --- | --- | --- |
| Price | $5.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/petroleum-engineering-plus/id6746214573/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 18 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### ElePHPant

[App page](https://appshunter.io/ios/app/elephpant/id6743419094)

**Features:** macOS Compatibility

**In-app purchases:** none


### Petroleum Engineering+

[App page](https://appshunter.io/ios/app/petroleum-engineering-plus/id6746214573)

Master petroleum engineering concepts through engaging quizzes covering a wide range of topics from geology to production. Ideal for students and professionals seeking to enhance their knowledge and skills in the oil and gas industry.

**Highlights:** Comprehensive quiz coverage, Topics from geology to production, Boost knowledge and skills, Engaging learning experience, Suitable for students and professionals

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


## Frequently asked questions

### Is ElePHPant free?

ElePHPant costs $5.99, with no in-app purchases.

### Is Petroleum Engineering+ free?

Petroleum Engineering+ is free to download, with in-app purchases available.

### Do ElePHPant or Petroleum Engineering+ have ads?

Neither ElePHPant nor Petroleum Engineering+ shows ads.

### Which is updated more often, ElePHPant or Petroleum Engineering+?

ElePHPant ships an update every 2 months, and Petroleum Engineering+ monthly. Most recently, ElePHPant was updated on September 9, 2026 and Petroleum Engineering+ on September 23, 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.*