# Drillstring Toolbox vs MUDSheet

The clearest difference is rating: MUDSheet at 5.0 against Drillstring Toolbox's 3.3. MUDSheet also leads on update cadence (every 2 months vs every 39 months) and iOS requirement (9.0 vs 14.0). Drillstring Toolbox's advantage is ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MUDSheet holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Drillstring Toolbox ships an update every 39 months, MUDSheet every 2 months. The most recent releases landed on September 5, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Drillstring Toolbox | MUDSheet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/drillstring-toolbox/id1068605189/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mudsheet/id1510513381/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 1 MB | 18 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bureau Veritas North America, Inc.](https://appshunter.io/developer/1770295442) | [Pegasus Vertex, Inc.](https://appshunter.io/developer/954796003) |

## What reviewers say

### Drillstring Toolbox

[App page](https://appshunter.io/ios/app/drillstring-toolbox/id1068605189)

This utility app calculates drill-stem load capacities based on API connections and sizes. It also provides makeup torque and tensile capacity, as well as tensile and torsion capacities for drill pipe tubes.

**Highlights:** Drill-stem load capacity calculation, API connection selection, Makeup torque calculation, Tensile capacity calculation, Drill pipe tube capacities

**Features:** macOS Compatibility

**In-app purchases:** none


### MUDSheet

[App page](https://appshunter.io/ios/app/mudsheet/id1510513381)

This app provides essential calculations and data for mud engineering. It distills critical information from various engineering resources into a convenient tool for mud and drilling engineers, offering quick access to equations and chemical formulas.

**Highlights:** Essential mud engineering calculations, Quick access to drilling equations, Chemical formulas and atomic table, Unit conversion and setup exchange, Input data validation, Multiple table references

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Drillstring Toolbox free?

Drillstring Toolbox is free to download, with no in-app purchases.

### Is MUDSheet free?

MUDSheet is free to download, with no in-app purchases.

### Which has better reviews, Drillstring Toolbox or MUDSheet?

MUDSheet is rated higher. Drillstring Toolbox averages 3.3 out of 5 from 3 ratings, while MUDSheet averages 5.0 from 1 ratings.

### Do Drillstring Toolbox or MUDSheet have ads?

Neither Drillstring Toolbox nor MUDSheet shows ads.

### Which is updated more often, Drillstring Toolbox or MUDSheet?

Drillstring Toolbox ships an update every 39 months, and MUDSheet every 2 months. Most recently, Drillstring Toolbox was updated on September 5, 2026 and MUDSheet on September 10, 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.*