# Ton Miles Calculator vs Drillstring Toolbox

The clearest difference is price: Drillstring Toolbox at Free against Ton Miles Calculator's $19.99. Ton Miles Calculator's advantage is update cadence (every 14 months vs every 39 months) and chart position (#193 vs unranked). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Drillstring Toolbox is free to download; Ton Miles Calculator costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Ton Miles Calculator ships an update every 14 months, Drillstring Toolbox every 39 months. The most recent releases landed on September 15, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Ton Miles Calculator | Drillstring Toolbox |
| --- | --- | --- |
| Price | $19.99 | **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 14 months** | Every 39 months |
| Monetization | — | Free |
| Best chart rank | **#193** | — |
| Size | 9 MB | 1 MB |
| Requires iOS | 15.6 | **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

### Ton Miles Calculator

[App page](https://appshunter.io/ios/app/ton-miles-calculator/id965020659)

**Currently charting:** #193 Top Paid · Utilities (US App Store)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Ton Miles Calculator free?

Ton Miles Calculator costs $19.99, with no in-app purchases.

### Is Drillstring Toolbox free?

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

### Do Ton Miles Calculator or Drillstring Toolbox have ads?

Neither Ton Miles Calculator nor Drillstring Toolbox shows ads.

### Which is updated more often, Ton Miles Calculator or Drillstring Toolbox?

Ton Miles Calculator ships an update every 14 months, and Drillstring Toolbox every 39 months. Most recently, Ton Miles Calculator was updated on September 15, 2026 and Drillstring Toolbox on September 5, 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.*