Crystal Water Monitor 4+

pool and spa chemistry monitor

General Galactic Systems, Inc.

    • 5.0 • 1 Rating
    • Free

iPhone Screenshots


Crystal Water Monitor keeps tabs on your pool or hot tub water chemistry. Crystal monitors your pH, sanitizer, and water temperature and alerts you when changes are needed. The app provides easy to use dosing instructions for your chemicals.

What’s New

Version 1.2.4

Minor updates and bug fixes

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

App Privacy

The developer, General Galactic Systems, Inc., 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
  • User Content
  • Identifiers
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data

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

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