# DrillAR vs Petroleum Engineering+

The clearest difference is rating: Petroleum Engineering+ at 5.0 against DrillAR's 4.0. Petroleum Engineering+ also leads on update cadence (monthly vs every 4 months). DrillAR's advantage is in-app purchases (none vs 6) and iOS requirement (6.0 vs 17.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Petroleum Engineering+ sells 6 in-app purchases, starting at $9.99 per month. DrillAR asks for nothing beyond the download.

Petroleum Engineering+ holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

DrillAR ships an update every 4 months, Petroleum Engineering+ monthly. The most recent releases landed on October 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | DrillAR | Petroleum Engineering+ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/drillar/id820710413/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/petroleum-engineering-plus/id6746214573/reviews)** |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 780 MB | 18 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Schlumberger Technology Corporation](https://appshunter.io/developer/380098290) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## What reviewers say

### DrillAR

[App page](https://appshunter.io/ios/app/drillar/id820710413)

Explore a life-sized, 3D Schlumberger integrated drilling system. Examine intricate components of bottom-hole assemblies and gain insight into the latest well-drilling technologies used globally.

**Highlights:** Life-sized 3D drilling system model, Examine BHA components, Insight into drilling technologies, Featured drilling components: Drill Bits, Drive Systems, LWD, Hole opening

**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 DrillAR free?

DrillAR is free to download, with no in-app purchases.

### Is Petroleum Engineering+ free?

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

### Which has better reviews, DrillAR or Petroleum Engineering+?

Petroleum Engineering+ is rated higher. DrillAR averages 4.0 out of 5 from 1 ratings, while Petroleum Engineering+ averages 5.0 from 1 ratings.

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

Neither DrillAR nor Petroleum Engineering+ shows ads.

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

DrillAR ships an update every 4 months, and Petroleum Engineering+ monthly. Most recently, DrillAR was updated on October 7, 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.*