# Drillstring Toolbox Premium vs iECG

The clearest difference is price: iECG at Free against Drillstring Toolbox Premium's $24.99. iECG also leads on update cadence (every 2 months vs every 24 months). Drillstring Toolbox Premium's advantage is device support (3 vs 1) and iOS requirement (14.0 vs 16.0). On ads and in-app purchases there is nothing between them.

iECG 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, iECG every 2 months. The most recent releases landed on September 20, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Drillstring Toolbox Premium | iECG |
| --- | --- | --- |
| Price | $24.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 months** |
| Size | 1 MB | 2 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Bureau Veritas North America, Inc.](https://appshunter.io/developer/1770295442) | [徐州永康电子科技有限公司](https://appshunter.io/developer/1095223244) |

## 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


### iECG

[App page](https://appshunter.io/ios/app/iecg/id6468363704)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Drillstring Toolbox Premium free?

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

### Is iECG free?

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

### Do Drillstring Toolbox Premium or iECG have ads?

Neither Drillstring Toolbox Premium nor iECG shows ads.

### Which is updated more often, Drillstring Toolbox Premium or iECG?

Drillstring Toolbox Premium ships an update every 24 months, and iECG every 2 months. Most recently, Drillstring Toolbox Premium was updated on September 20, 2026 and iECG on September 13, 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.*