# Culligan Link vs Contraction tracker & timer

The clearest difference is in-app purchases: Culligan Link at none against Contraction tracker & timer's 2. Culligan Link also leads on iOS requirement (11.0 vs 18.5). Contraction tracker & timer's advantage is update cadence (every 6 weeks vs every 11 months). On price, ads and device support there is nothing between them.

Both are free to download. Contraction tracker & timer sells 2 in-app purchases, starting at $0.99 per 7 days. Culligan Link asks for nothing beyond the download.

Culligan Link ships an update every 11 months, Contraction tracker & timer every 6 weeks. The most recent releases landed on September 14, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Culligan Link | Contraction tracker & timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/culligan-link/id6449174033/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 163 MB | 13 MB |
| Requires iOS | **11.0** | 18.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Culligan Water Treatment Technology (Shanghai) Co., Ltd.](https://appshunter.io/developer/1445345492) | [Lucas Diaz](https://appshunter.io/developer/1742950982) |

## What reviewers say

### Culligan Link

[App page](https://appshunter.io/ios/app/culligan-link/id6449174033)

Easily manage and monitor your connected appliances remotely. Control multiple devices simultaneously and manage various projects with a simple and quick connection process.

**Highlights:** Remote control and monitoring, Simultaneous multi-device control, Project management, Easy device connection

**Features:** macOS Compatibility

**In-app purchases:** none


### Contraction tracker & timer

[App page](https://appshunter.io/ios/app/contraction-tracker-and-timer/id6749600998)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per 7 days |
| Premium | $2.99 | per month |


## Frequently asked questions

### Is Culligan Link free?

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

### Is Contraction tracker & timer free?

Contraction tracker & timer is free to download, with in-app purchases available.

### Do Culligan Link or Contraction tracker & timer have ads?

Neither Culligan Link nor Contraction tracker & timer shows ads.

### Which is updated more often, Culligan Link or Contraction tracker & timer?

Culligan Link ships an update every 11 months, and Contraction tracker & timer every 6 weeks. Most recently, Culligan Link was updated on September 14, 2026 and Contraction tracker & timer on September 16, 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.*