# Cellular Alarm Contact Sensor vs Conn.Logger

The clearest difference is update cadence: Cellular Alarm Contact Sensor at every 3 weeks against Conn.Logger's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Cellular Alarm Contact Sensor ships an update every 3 weeks, Conn.Logger every 4 months. The most recent releases landed on October 27, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Cellular Alarm Contact Sensor | Conn.Logger |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 2 MB | 9 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Robert Taraszka](https://appshunter.io/developer/1518710123) | [MRS Electronic Gmbh & Co. KG](https://appshunter.io/developer/1584295931) |

## What reviewers say

### Cellular Alarm Contact Sensor

[App page](https://appshunter.io/ios/app/cellular-alarm-contact-sensor/id1518710124)

**Features:** macOS Compatibility

**In-app purchases:** none


### Conn.Logger

[App page](https://appshunter.io/ios/app/connlogger/id1584295929)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Cellular Alarm Contact Sensor free?

Cellular Alarm Contact Sensor is free to download, with no in-app purchases.

### Is Conn.Logger free?

Conn.Logger is free to download, with no in-app purchases.

### Do Cellular Alarm Contact Sensor or Conn.Logger have ads?

Neither Cellular Alarm Contact Sensor nor Conn.Logger shows ads.

### Which is updated more often, Cellular Alarm Contact Sensor or Conn.Logger?

Cellular Alarm Contact Sensor ships an update every 3 weeks, and Conn.Logger every 4 months. Most recently, Cellular Alarm Contact Sensor was updated on October 27, 2026 and Conn.Logger on September 25, 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.*