# ECD Calculator

> Drilling and mud engineering tool for calculating Equivalent Circulating Density. (iPhone/iPad app by Drillsoft LLC.)

- Source: https://appshunter.io/ios/app/ecd-calculator/id6754762850 (this page in markdown: same URL + `.md`)
- Developer: [Drillsoft LLC](https://appshunter.io/developer/1787962403)
- Category: Utilities, Education
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings · 4 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.1 · 45 MB
- Languages: American English
- Released: 2026-02-09
- Data updated: 2026-08-19
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/ecd-calculator/id6754762850/reviews.md

## What is ECD Calculator?

ECD calculator help drilling  and mud engineers calculate the ECD at any point with a few click

## Key features

- ECD calculation
- Drilling engineering
- Mud engineering
- Point-of-operation calculation
- Streamlined interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 50 credits | $3.99 | one-time |
| 300 Credits | $9.99 | one-time |


## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/ecd-calculator/id6754762850/reviews.md

### 5/5 — Best app ever

*2026-03-19, version 1.1.3*

This app help a lot with my ECD calculations. The report is very professional and comprehensive. Top app

### 5/5 — Excellent app!!

*2026-02-14, version 1.0.3*

Great support to calculate  very fast the ECD.

### 5/5 — Top App

*2026-02-13, version 1.0.3*

This is a great app. Easy to use. I calculate the ECD from drillers cabin in few seconds. Highly recommended 🙌🏼🔝👍🏼

### 5/5 — Excellent application

*2026-02-11, version 1.0.3*

This is one of the best applications I’ve ever used. Help me in my job as MPD engineer to calculate the ECD on the field without a need of laptop or internet. Love it ❤️

## Frequently asked questions about ECD Calculator

### What is ECD Calculator used for?

ECD Calculator is used by drilling and mud engineers to quickly calculate the Equivalent Circulating Density at any point during drilling operations. It simplifies complex calculations with a user-friendly interface.

### Is ECD Calculator free to use?

Yes, ECD Calculator is available for free. It does not require any payment to download or use its core functionalities.

### What devices is ECD Calculator compatible with?

ECD Calculator is designed for iOS devices, including iPhone, iPad, and iPod. It is optimized for mobile use.

### How often is ECD Calculator updated?

The app was last updated on March 19, 2026, indicating active development. Users can expect ongoing improvements and potential new features.

### What is the age rating for ECD Calculator?

ECD Calculator has an age rating of 17+. This is likely due to the specialized nature of the calculations and the target professional audience.

### What is the user feedback on ECD Calculator?

Based on the available data, ECD Calculator has received a perfect 5.0-star rating from 5 reviews, suggesting very positive user sentiment.

### Does ECD Calculator have ads?

No, ECD Calculator does not contain advertisements. Users can perform calculations without interruption.

## Version history (last 5 releases)

### 1.1.4 — 2026-08-12

This new version includes the tabs menu with Liquid Glass.

### 1.1.3 — 2026-03-19

Implement a summary of results at points of interest.

### 1.1.2 — 2026-03-14

Allow the use of a comma as a decimal separator in the “Target ECD” input field and correct the display of results on tablets

### 1.1.0 — 2026-03-11

Update of terms and conditions
New graphic: profile of the annular sections with diameters
Reports in PDF format

### 1.0.3 — 2026-02-11

Add app review functionality with useAppReview hook and integrate into Credits and Home screens

## Apps similar to ECD Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [TallyRig: Well Control Calc](https://appshunter.io/ios/app/tallyrig-well-control-calc/id6758645641) | — | Free | Utilities |
| [Mud Man Pro](https://appshunter.io/ios/app/mud-man-pro/id6765783852) | — | Free | Utilities |
| [Oil & Gas Calculator : OilCalc](https://appshunter.io/ios/app/oil-and-gas-calculator-oilcalc/id6756295889) | — | Free | Utilities |
| [Oilfield Drilling & Blast Calc](https://appshunter.io/ios/app/oilfield-drilling-and-blast-calc/id6762048533) | — | Free | Utilities |
| [Driller's Method](https://appshunter.io/ios/app/drillers-method/id1067011800) | — | $9.99 | Utilities |
| [WellCalc](https://appshunter.io/ios/app/wellcalc/id6761081416) | — | Free | Utilities |

## More apps by Drillsoft LLC

- [Friction Drilling Calculator](https://appshunter.io/ios/app/friction-drilling-calculator/id6740011503)
- [MPD SmartCards](https://appshunter.io/ios/app/mpd-smartcards/id6759011027)

All apps by Drillsoft LLC: https://appshunter.io/developer/1787962403

---

*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 2026-08-19.*