# Mud Weight vs WellCalc

The clearest difference is price: WellCalc at Free against Mud Weight's $0.99. WellCalc also leads on update cadence (weekly vs every 4 months). Mud Weight's advantage is in-app purchases (none vs 2) and iOS requirement (10.0 vs 18.0). On ads and device support there is nothing between them.

WellCalc is free to download; Mud Weight costs $0.99 up front. WellCalc sells 2 in-app purchases, starting at $4.99 per month. Mud Weight asks for nothing beyond the download.

Mud Weight ships an update every 4 months, WellCalc weekly. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Mud Weight | WellCalc |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| 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 | **Weekly** |
| Monetization | Paid | — |
| Size | 86 MB | 13 MB |
| Requires iOS | **10.0** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GoodStamp](https://appshunter.io/developer/717537129) | [Ryan Tinklepaugh](https://appshunter.io/developer/1883444651) |

## 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


### WellCalc

[App page](https://appshunter.io/ios/app/wellcalc/id6761081416)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WellCalc Pro Monthly | $4.99 | per month |
| WellCalc Pro Yearly | $29.99 | per year |


## Frequently asked questions

### Is Mud Weight free?

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

### Is WellCalc free?

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

### Do Mud Weight or WellCalc have ads?

Neither Mud Weight nor WellCalc shows ads.

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

Mud Weight ships an update every 4 months, and WellCalc weekly. Most recently, Mud Weight was updated on October 29, 2026 and WellCalc on October 25, 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.*