# PDC Bit & Drilling Calculator vs Mud fluid

The clearest difference is price: Mud fluid at Free against PDC Bit & Drilling Calculator's $1.99. PDC Bit & Drilling Calculator's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Mud fluid is free to download; PDC Bit & Drilling Calculator costs $1.99 up front. Mud fluid sells 3 one-off in-app purchases. PDC Bit & Drilling Calculator asks for nothing beyond the download.

## The numbers

| Metric | PDC Bit & Drilling Calculator | Mud fluid |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | — | 76.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 2 MB | 9 MB |
| Requires iOS | 16.6 | **16.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [zhandos uakanov](https://appshunter.io/developer/625286817) | [Dmitry Pavlov](https://appshunter.io/developer/1582369829) |

## What reviewers say

### PDC Bit & Drilling Calculator

[App page](https://appshunter.io/ios/app/pdc-bit-and-drilling-calculator/id1445383576)

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

**In-app purchases:** none


### Mud fluid

[App page](https://appshunter.io/ios/app/mud-fluid/id1582369827)

This app assists mud engineers with rapid calculations for wellbore flushing, including time and volume. It supports drilling intervals like surface casing and production casing, and can also compute solution weight and dilution. Metric units are currently available, with imperial units planned for a future update.

**Highlights:** Wellbore flushing time and volume calculation, Supports drilling intervals, Solution weight calculation, Dilution calculation, Metric units support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tips | $0.99 | one-time |
| For cookies | $0.99 | one-time |
| For coffee | $4.99 | one-time |


## Frequently asked questions

### Is PDC Bit & Drilling Calculator free?

PDC Bit & Drilling Calculator costs $1.99, with no in-app purchases.

### Is Mud fluid free?

Mud fluid is free to download, with in-app purchases available.

### Do PDC Bit & Drilling Calculator or Mud fluid have ads?

Neither PDC Bit & Drilling Calculator nor Mud fluid shows ads.

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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.*