# CMS EcoTrak vs Winching Calc

The clearest difference is price: CMS EcoTrak at Free against Winching Calc's $4.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

CMS EcoTrak is free to download; Winching Calc costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 27, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CMS EcoTrak | Winching Calc |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Size | 56 MB | 18 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [CMS SupaTrak Ltd](https://appshunter.io/developer/1565174937) | [Aled Bound](https://appshunter.io/developer/1811888961) |

## What reviewers say

### CMS EcoTrak

[App page](https://appshunter.io/ios/app/cms-ecotrak/id1584830834)

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

**In-app purchases:** none


### Winching Calc

[App page](https://appshunter.io/ios/app/winching-calc/id6745356225)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CMS EcoTrak free?

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

### Is Winching Calc free?

Winching Calc costs $4.99, with no in-app purchases.

### Do CMS EcoTrak or Winching Calc have ads?

Neither CMS EcoTrak nor Winching Calc shows ads.

### Which is updated more often, CMS EcoTrak or Winching Calc?

CMS EcoTrak ships an update every 3 months, and Winching Calc every 3 months. Most recently, CMS EcoTrak was updated on September 27, 2026 and Winching Calc on October 11, 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.*