Langelier Saturation Index 4+

LSI Job Logbook

Verosocial Studio

Designed for iPad

    • 4.7 • 3 Ratings
    • $0.99



Introducing the Langelier Saturation Index Calculator app for iOS – the ultimate tool for pool owners and professionals. With this app, you can easily and accurately calculate the Langelier Saturation Index (LSI) of your pool water, ensuring that your pool is always properly balanced and healthy for swimmers.

The Langelier Saturation Index is a measure of the balance between the calcium and alkalinity levels in your pool water. A balanced pool will have an LSI of 0, while a pool with too much calcium will have a positive LSI, and a pool with too little calcium will have a negative LSI. By regularly calculating the LSI of your pool water, you can ensure that it is always properly balanced and safe for swimmers.

Using the LSI Calculator app is simple: just enter the pH, temperature, total alkalinity, and calcium hardness levels of your pool water, and the app will provide you with an instant calculation of the LSI. You can even save your calculations and track the LSI of your pool over time to monitor changes and make adjustments as needed.

The LSI Calculator app is a must-have for anyone who wants to keep their pool water healthy and balanced. With its easy-to-use interface and accurate calculations, you'll be able to maintain a safe and enjoyable pool environment for you and your family. Download the app today and take control of your pool's water chemistry.

Also, water temperature can be entered as Fahrenheit or Celsius.

This app features:

• Send your calculations or conversions by email
• Universal App (iPhone, iPod Touch, and iPad)
• Retina Display graphics
• Fast app switching
• Automatically Saves Your Inputs
• Latest version of iOS is supported
• All iPhone and iPad screens sizes are supported
• Export to CSV

No network connectivity required.

What’s New

Version 7.2

create merge policy for database

Ratings and Reviews

4.7 out of 5
3 Ratings

3 Ratings

Brasshandle ,

Handy for work and testing

Good to have available for record keeping...

New database functionality is very nice, especially with the auto save.

Exporting to spreadsheets format is very helpful.

Sync works great over iCloud

Celluloid Hero ,

Best app for LSI

Would like to see a history of values and graph trends with a place for comments about what actions were taken to change LSI.

Livewire21 ,

Great app

Does what it says. I use it daily. Better than working it out on paper!

App Privacy

The developer, Verosocial Studio, 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 Not Collected

The developer does not collect any data from this app.

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


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer

Time Calculator+
Roadtrip Gas Cost Calculator
Volleyball Player Game Stats
TVM: Time Value of Money
Basketball Player Stat Tracker

You Might Also Like

Air Advantage
HASA water
LSI Calculator
uPyxis 2.0
Aliquot Pro