# Directional Survey Methods vs Drillstring Toolbox Premium

The clearest difference is price: Directional Survey Methods at Free against Drillstring Toolbox Premium's $24.99. Directional Survey Methods also leads on iOS requirement (12.0 vs 14.0). Drillstring Toolbox Premium's advantage is update cadence (every 24 months vs every 50 months). On ads, in-app purchases and device support there is nothing between them.

Directional Survey Methods is free to download; Drillstring Toolbox Premium costs $24.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Directional Survey Methods ships an update every 50 months, Drillstring Toolbox Premium every 24 months. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Directional Survey Methods | Drillstring Toolbox Premium |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 24 months** |
| Size | 7 MB | 1 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Bureau Veritas North America, Inc.](https://appshunter.io/developer/1770295442) |

## What reviewers say

### Directional Survey Methods

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

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

**In-app purchases:** none


### Drillstring Toolbox Premium

[App page](https://appshunter.io/ios/app/drillstring-toolbox-premium/id1222651738)

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

**In-app purchases:** none


## Frequently asked questions

### Is Directional Survey Methods free?

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

### Is Drillstring Toolbox Premium free?

Drillstring Toolbox Premium costs $24.99, with no in-app purchases.

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

Neither Directional Survey Methods nor Drillstring Toolbox Premium shows ads.

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

Directional Survey Methods ships an update every 50 months, and Drillstring Toolbox Premium every 24 months. Most recently, Directional Survey Methods was updated on September 15, 2026 and Drillstring Toolbox Premium on September 20, 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.*