# Drilling Hydraulics (Basic) vs Cementing Engineer

The clearest difference is price: Cementing Engineer at Free against Drilling Hydraulics (Basic)'s $4.99. Cementing Engineer also leads on update cadence (fortnightly vs every 14 months). Drilling Hydraulics (Basic)'s advantage is in-app purchases (none vs 2) and iOS requirement (10.3 vs 15.0). On ads and device support there is nothing between them.

Cementing Engineer is free to download; Drilling Hydraulics (Basic) costs $4.99 up front. Cementing Engineer sells 2 in-app purchases, starting at $9.99 per month. Drilling Hydraulics (Basic) asks for nothing beyond the download.

Drilling Hydraulics (Basic) ships an update every 14 months, Cementing Engineer fortnightly. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Drilling Hydraulics (Basic) | Cementing Engineer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/cementing-engineer/id6779455442/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Fortnightly** |
| Monetization | — | Subscription |
| Size | 7 MB | 18 MB |
| Requires iOS | **10.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Rondo Wright](https://appshunter.io/developer/6779455444) |

## What reviewers say

### Drilling Hydraulics (Basic)

[App page](https://appshunter.io/ios/app/drilling-hydraulics-basic/id673992115)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cementing Engineer

[App page](https://appshunter.io/ios/app/cementing-engineer/id6779455442)

This app is a field calculator for oilfield cementing operations. It allows users to input wellbore geometry and slurry details to get live, updated calculations for volumes, pressures, and pump schedules. The app also features a live well schematic and a tally book for saving and recalling job details.

**Highlights:** Field calculator for oilfield cementing, Live, updating calculations for volumes and pressures, Wellbore geometry and slurry stack input, Derived results with detailed math, Live well schematic, Tally Book for saving and recalling jobs, Offline functionality

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $9.99 | per month |
| Pro Annual | $79.99 | per year |


## Frequently asked questions

### Is Drilling Hydraulics (Basic) free?

Drilling Hydraulics (Basic) costs $4.99, with no in-app purchases.

### Is Cementing Engineer free?

Cementing Engineer is free to download, with in-app purchases available.

### Do Drilling Hydraulics (Basic) or Cementing Engineer have ads?

Neither Drilling Hydraulics (Basic) nor Cementing Engineer shows ads.

### Which is updated more often, Drilling Hydraulics (Basic) or Cementing Engineer?

Drilling Hydraulics (Basic) ships an update every 14 months, and Cementing Engineer fortnightly. Most recently, Drilling Hydraulics (Basic) was updated on September 23, 2026 and Cementing Engineer on September 17, 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.*