# Mud Weight vs DDToolsPro

The clearest difference is price: Mud Weight at $0.99 against DDToolsPro's $9.99. Mud Weight also leads on in-app purchases (none vs 2) and iOS requirement (10.0 vs 18.2). DDToolsPro's advantage is chart position (#177 vs unranked) and update cadence (every 2 months vs every 4 months). On ads and device support there is nothing between them.

Mud Weight costs $0.99 and DDToolsPro $9.99 up front. DDToolsPro sells 2 in-app purchases, starting at $12.99 per month. Mud Weight asks for nothing beyond the download.

Mud Weight ships an update every 4 months, DDToolsPro every 2 months. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Mud Weight | DDToolsPro |
| --- | --- | --- |
| Price | **$0.99** | $9.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/mud-weight/id1456298201/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Paid | — |
| Best chart rank | — | **#177** |
| Size | 86 MB | 8 MB |
| Requires iOS | **10.0** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GoodStamp](https://appshunter.io/developer/717537129) | [Michael Blake](https://appshunter.io/developer/1443250004) |

## What reviewers say

### Mud Weight

[App page](https://appshunter.io/ios/app/mud-weight/id1456298201)

This utility app assists oil and gas professionals with quick calculations for drilling fluid weight. It allows users to adjust parameters like specific gravity and sack weight, save preferences for different wells, and calculate material needs.

**Highlights:** Adjust specific gravity, Calculate sack weight, Manage pallet sizes, Save mud and material preferences, Create multiple wells, Calculate material amounts

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

**In-app purchases:** none


### DDToolsPro

[App page](https://appshunter.io/ios/app/ddtoolspro/id6755078356)

**Currently charting:** #177 Top Paid · Utilities (US App Store)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DD Tools Pro Unlock - Monthly | $12.99 | per month |
| DD Tools Pro Unlock - Annual | $129.99 | per year |


## Frequently asked questions

### Is Mud Weight free?

Mud Weight costs $0.99, with no in-app purchases.

### Is DDToolsPro free?

DDToolsPro costs $9.99, and also offers in-app purchases.

### Do Mud Weight or DDToolsPro have ads?

Neither Mud Weight nor DDToolsPro shows ads.

### Which is updated more often, Mud Weight or DDToolsPro?

Mud Weight ships an update every 4 months, and DDToolsPro every 2 months. Most recently, Mud Weight was updated on October 9, 2026 and DDToolsPro on October 2, 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.*