# Drillstring Toolbox Premium vs Riser Safety Margin

The clearest difference is price: Riser Safety Margin at Free against Drillstring Toolbox Premium's $24.99. Riser Safety Margin also leads on iOS requirement (12.0 vs 14.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Riser Safety Margin 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.

Drillstring Toolbox Premium ships an update every 24 months, Riser Safety Margin every 37 months. The most recent releases landed on September 20, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Drillstring Toolbox Premium | Riser Safety Margin |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 24 months** | Every 37 months |
| Size | 1 MB | 8 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 Premium

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

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

**In-app purchases:** none


### Riser Safety Margin

[App page](https://appshunter.io/ios/app/riser-safety-margin/id1462441253)

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

**In-app purchases:** none


## Frequently asked questions

### Is Drillstring Toolbox Premium free?

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

### Is Riser Safety Margin free?

Riser Safety Margin is free to download, with no in-app purchases.

### Do Drillstring Toolbox Premium or Riser Safety Margin have ads?

Neither Drillstring Toolbox Premium nor Riser Safety Margin shows ads.

### Which is updated more often, Drillstring Toolbox Premium or Riser Safety Margin?

Drillstring Toolbox Premium ships an update every 24 months, and Riser Safety Margin every 37 months. Most recently, Drillstring Toolbox Premium was updated on September 20, 2026 and Riser Safety Margin 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.*