# Drilling Engineering — user reviews

> 8 indexed App Store user reviews of Drilling Engineering by PT.Pertamina(Persero), rated 3.80/5 from 19 ratings.

- Source: https://appshunter.io/ios/app/drilling-engineering/id891302915/reviews
- App overview in markdown: https://appshunter.io/ios/app/drilling-engineering/id891302915.md
- Rating breakdown: 5★ 7 · 4★ 6 · 3★ 2 · 2★ 3 · 1★ 1

## Most critical reviews (8 lowest-rated)

### 2/5 — Potential

*2018-04-13*

Most of functions not working yet. Hope you get it going soon.

### 2/5 — Has bugs

*2018-03-25*

Determine oil water ratio does not work. Most other functions seem to work. This app has potential. Just not ready for prime time yet.

### 2/5 — Update?

*2017-10-27*

Please put out an update

### 3/5 — Looks good, but error in Drill String calculations gives “Infinity” answer from a real world example

*2020-08-11*

Happy to help with a fix if you need

### 4/5 — Good app; requires a bit more work to be great

*2019-11-01*

Overall is a good app, but requires a bit more work to be great. The mud density increase with Barite or with Calcarb gives answers only in numbers of sacks, and not in pounds. Different parts of the world use different sizes of sacks. The app doesn’t mention what size sacks it uses.

### 4/5 — ios11

*2017-09-27*

Is there any update soon !

### 4/5 — Good resource

*2014-11-07*

Simple to use and concise. Thanks!

### 5/5 — Very useful

*2014-11-21*

Great useful app for drilling calculations...love it!!

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-09.*