# Drillstring Toolbox vs Directional Survey Methods

The clearest difference is iOS requirement: Directional Survey Methods at 12.0 against Drillstring Toolbox's 14.0. On price, update cadence, ads and in-app purchases 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, Directional Survey Methods every 50 months. The most recent releases landed on September 5, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Drillstring Toolbox | Directional Survey Methods |
| --- | --- | --- |
| 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 50 months |
| Monetization | Free | — |
| Size | 1 MB | 7 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bureau Veritas North America, Inc.](https://appshunter.io/developer/1770295442) | [Carlos Moura](https://appshunter.io/developer/407501202) |

## 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


### Directional Survey Methods

[App page](https://appshunter.io/ios/app/directional-survey-methods/id1130800392)

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

**In-app purchases:** none


## Frequently asked questions

### Is Drillstring Toolbox free?

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

### Is Directional Survey Methods free?

Directional Survey Methods is free to download, with no in-app purchases.

### Do Drillstring Toolbox or Directional Survey Methods have ads?

Neither Drillstring Toolbox nor Directional Survey Methods shows ads.

### Which is updated more often, Drillstring Toolbox or Directional Survey Methods?

Drillstring Toolbox ships an update every 39 months, and Directional Survey Methods every 50 months. Most recently, Drillstring Toolbox was updated on September 5, 2026 and Directional Survey Methods on September 15, 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.*