# Drillstring Toolbox vs MES Percentage Calculator

The clearest difference is update cadence: MES Percentage Calculator at every 2 days against Drillstring Toolbox's every 39 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Drillstring Toolbox ships an update every 39 months, MES Percentage Calculator every 2 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Drillstring Toolbox | MES Percentage Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/drillstring-toolbox/id1068605189/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 1 MB | 3 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bureau Veritas North America, Inc.](https://appshunter.io/developer/1770295442) | [Mathiew Estepho](https://appshunter.io/developer/6809222893) |

## 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


### MES Percentage Calculator

[App page](https://appshunter.io/ios/app/mes-percentage-calculator/id6809222891)

**In-app purchases:** none


## Frequently asked questions

### Is Drillstring Toolbox free?

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

### Is MES Percentage Calculator free?

MES Percentage Calculator is free to download, with no in-app purchases.

### Do Drillstring Toolbox or MES Percentage Calculator have ads?

Neither Drillstring Toolbox nor MES Percentage Calculator shows ads.

### Which is updated more often, Drillstring Toolbox or MES Percentage Calculator?

Drillstring Toolbox ships an update every 39 months, and MES Percentage Calculator every 2 days. Most recently, Drillstring Toolbox was updated on November 2, 2026 and MES Percentage Calculator on November 6, 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.*