# Catenary Cables vs LineConstants

The clearest difference is iOS requirement: Catenary Cables at 16.0 against LineConstants's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Catenary Cables sells 2 in-app purchases, starting at $59.99 per month and LineConstants sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 8, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Catenary Cables | LineConstants |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/catenary-cables/id6447140970/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Subscription | — |
| Size | 31 MB | 33 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Logan Copenhaver](https://appshunter.io/developer/1680415210) | [Sergey Gussev](https://appshunter.io/developer/1784439395) |

## What reviewers say

### Catenary Cables

[App page](https://appshunter.io/ios/app/catenary-cables/id6447140970)

This app provides a more accurate and efficient method for calculating the sagging of overhead transmission line conductors. It replaces traditional approximate parabolic equations with precise catenary expressions, saving time and improving accuracy.

**Highlights:** Accurate sag calculations, Precise catenary expressions, Replaces traditional methods, Flexible transit setup, Time-saving efficiency

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $59.99 | per month |
| Yearly | $539.99 | per year |


### LineConstants

[App page](https://appshunter.io/ios/app/lineconstants/id6740081204)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is Catenary Cables free?

Catenary Cables is free to download, with in-app purchases available.

### Is LineConstants free?

LineConstants is free to download, with in-app purchases available.

### Do Catenary Cables or LineConstants have ads?

Neither Catenary Cables nor LineConstants shows ads.

### Which is updated more often, Catenary Cables or LineConstants?

Catenary Cables ships an update every 2 months, and LineConstants every 2 months. Most recently, Catenary Cables was updated on September 8, 2026 and LineConstants on June 10, 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.*