# Watchlog Connect — Sensor Monitoring & Logging

> Sensor Monitoring & Logging (iPhone/iPad app by Hydrotechnik UK Test Engineering Ltd.)

- Source: https://appshunter.io/ios/app/watchlog-connect/id6778035438 (this page in markdown: same URL + `.md`)
- Developer: [Hydrotechnik UK Test Engineering Ltd](https://appshunter.io/developer/1515531717)
- Category: Utilities, Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 32 MB
- Languages: American English
- Released: 2026-08-28
- Data updated: 2026-10-14

## What is Watchlog Connect?

Watchlog Connect is a monitoring and reporting app for Hydrotechnik sensors.

Add pressure, temperature and flow sensors and watch live data on a chart with dual Y-axes, a crosshair and event markers, or as live tiles if you prefer numbers at a glance. Build calculated channels from your readings, including differential, up to 24 in total. Set alarms per channel and get a system notification when a reading breaches its limits.

Record sessions to disk at intervals from 5 ms up to 10 s, depending on the sensor type. Recordings keep writing through the whole session and survive an app restart, so a dropped connection does not cost you the data. Reopen, compare and export past sessions whenever you need to, or export CSV data with full precision and millisecond timestamps. Generate multi-page PDF reports with charts, channel summaries, alarm breaches and event markers.

Watchlog Connect is free to use, with the full sensor set, live charting, recording, alarms, CSV export and PDF reports included at no cost. Connect Plus is an optional annual licence that adds CAN bus acquisition using a Watchlog CAN to Bluetooth bridge.

Available in English, German, French, Italian, Spanish and Japanese.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 8 Sensors & All Views | $9.99 | one-time |


## Is Watchlog Connect safe?

Not enough ratings yet to assess Watchlog Connect.

## Is Watchlog Connect legit?

Watchlog Connect appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Watchlog Connect is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-09-07

- Manual record button added

### 1.0.0 — 2026-09-03

No release notes.

## More apps by Hydrotechnik UK Test Engineering Ltd

- [Watchlog](https://appshunter.io/ios/app/watchlog/id1520386269)
- [Watchlog Bluetooth](https://appshunter.io/ios/app/watchlog-bluetooth/id6479214506)
- [SensorLogger Sensor Monitor](https://appshunter.io/ios/app/sensorlogger-sensor-monitor/id6736585953)
- [Watchlog Pro Configurator](https://appshunter.io/ios/app/watchlog-pro-configurator/id6783477053)

All apps by Hydrotechnik UK Test Engineering Ltd: https://appshunter.io/developer/1515531717

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-14.*