Leak Defense System 4+


Designed for iPad

    • 3.4 • 11 Ratings
    • Free



The Leak Defense System is the industry leader in water leak shut off systems and smart-home water shut off valves. It's so advanced that you can turn off water to your home, a zone of a high-rise or the entire building with a touch of a button. Detects plumbing leaks and serves as an emergency water shut off too!

What’s New


Fixed issue with adjusting settings reported by some users.

Ratings and Reviews

3.4 out of 5
11 Ratings

11 Ratings

JIA4668 ,

Good but could be improved

This is a good app for controlling the Hydrosolutions Leak Defense system. The app permits one to remotely reset or turn on/off water to the house. However, It does not support Face ID. The app does not allow one to use long or complex passwords even though such passwords are acceptable when used in the website alternative to the app.

Madjmi11 ,


If I could give 0 stars I would. App itself is very slow to respond and alarm routinely goes on at 3am usually because a toilet is running.

App Privacy

The developer, Calance, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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