# Ton Miles Calculator vs Workover Assistant

The clearest difference is price: Workover Assistant at Free against Ton Miles Calculator's $19.99. Ton Miles Calculator's advantage is update cadence (every 14 months vs every 58 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Workover Assistant 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, Workover Assistant every 58 months. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Ton Miles Calculator | Workover Assistant |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/workover-assistant/id1117692519/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 14 months** | Every 58 months |
| Monetization | — | Free |
| Size | 9 MB | 3 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Kelly Gayneaux](https://appshunter.io/developer/1082576429) |

## What reviewers say

### Ton Miles Calculator

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

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

**In-app purchases:** none


### Workover Assistant

[App page](https://appshunter.io/ios/app/workover-assistant/id1117692519)

This utility app assists oil and gas field personnel with essential calculations for well workovers. It provides tools for hydrostatic pressure, internal capacity, and other critical functions, serving as a convenient resource for rig site or office use.

**Highlights:** Hydrostatic pressure calculations, Internal capacity calculations, Oil and gas well workover tools, Rig site and office utility, Accurate field calculations

**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 Workover Assistant free?

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

### Do Ton Miles Calculator or Workover Assistant have ads?

Neither Ton Miles Calculator nor Workover Assistant shows ads.

### Which is updated more often, Ton Miles Calculator or Workover Assistant?

Ton Miles Calculator ships an update every 14 months, and Workover Assistant every 58 months. Most recently, Ton Miles Calculator was updated on October 29, 2026 and Workover Assistant on October 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.*