# LSI Calculator — Commercial Pool Calculator

> Water science tools and education for pool and spa maintenance. (iPhone/iPad app by Pure Planet Science & Technology, Inc..)

- Source: https://appshunter.io/ios/app/lsi-calculator/id1233049990 (this page in markdown: same URL + `.md`)
- Developer: [Pure Planet Science & Technology, Inc.](https://appshunter.io/developer/1234693265)
- Category: Productivity, Reference
- Price: Free
- Rating: 4.40/5 from 5 App Store ratings · 2 written reviews indexed
- Age rating: 12+
- Requires: iOS 11.0 · 52 MB
- Languages: English
- Released: 2017-05-24
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/lsi-calculator/id1233049990/reviews.md

## What is LSI Calculator?

Next Generation Water Science makes water (and the people who maintain it) look great.

Next Generation Water Science makes eco-friendly water treatments for pools, spas, industrial and agricultural water systems. All products are NSF/ANSI Certified for purity and safety.

Through education and helpful tools like this mobile app, Next Generation Water Science has helped people of all aptitudes manage water better.

## Key features

- Water science education
- Pool and spa water management
- Eco-friendly treatment guidance
- NSF/ANSI Certified product information
- Tools for water system management

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/lsi-calculator/id1233049990/reviews.md

### 5/5 — Great Pool App

*2024-10-16*

This App is so helpful to anybody working with pools. I have been in the service industry 20 years and have been really impressed and learned many things from Orenda. Keep up the good work.

### 5/5 — Makes water chemistry easy

*2018-01-15*

This app is great. Does the math for me, and all I need to input is my water test results. Fantastic. It’s amazing how much this app teaches us! Great videos and articles in there for continuing education. Well done.

## Frequently asked questions about LSI Calculator

### What is LSI Calculator used for?

LSI Calculator is a mobile application designed to assist users in managing water systems, particularly for pools and spas. It offers tools and educational content to help with eco-friendly water treatments and maintenance.

### Is LSI Calculator free to use?

Yes, LSI Calculator is available for free. It does not require any payment to download or use its features.

### What devices support LSI Calculator?

LSI Calculator is compatible with iPhone, iPad, and iPod devices, offering a broad reach for Apple users.

### How often is LSI Calculator updated?

The app was last updated on December 12, 2023, indicating ongoing development and support from the developer.

### What is the age rating for LSI Calculator?

LSI Calculator has an age rating of 12+, suggesting it is suitable for users aged 12 and above.

### Does LSI Calculator offer integrations with other services?

The provided information does not specify any integrations with other services. Its focus appears to be on providing standalone tools and educational content for water management.

### What kind of water systems does LSI Calculator cover?

LSI Calculator provides guidance for pools, spas, industrial water systems, and agricultural water systems, emphasizing eco-friendly treatment options.

### What makes the water treatments recommended by LSI Calculator special?

The water treatments promoted through LSI Calculator are eco-friendly and NSF/ANSI Certified for purity and safety, ensuring effective and responsible water management.

## Version history (last 5 releases)

### 2.0 — 2023-12-12

Rework User Interface

### 1.4 — 2020-07-15

Improved formula for LSI calculation. UI fixes.

### 1.3.1 — 2018-05-07

Minor bug fixes.

### 1.3 — 2018-04-09

Updated pH and alkalinity formula.
Improved error handling.
Minor bug fixes.

### 1.2 — 2018-02-15

- Share videos.
- Option to contact us.
- Minor bug fixes.

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## More apps by Pure Planet Science & Technology, Inc.

- [Natural Pool](https://appshunter.io/ios/app/natural-pool/id1233091330)

All apps by Pure Planet Science & Technology, Inc.: https://appshunter.io/developer/1234693265

## Related topics

[lsi calculator](https://appshunter.io/ios/topics/lsi-calculator)

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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 2026-06-11.*