# PoolTracPro vs LSI Calculator

The clearest difference is review sentiment: LSI Calculator at 100% against PoolTracPro's 36%. LSI Calculator also leads on rating (4.4 vs 4.1) and iOS requirement (11.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

LSI Calculator holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 7 and 5 respectively. Written reviews point the same way: 36% of PoolTracPro's written reviews are positive against 100% of LSI Calculator's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on July 28, 2026 and June 11, 2026 respectively.

## The numbers

| Metric | PoolTracPro | LSI Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (7 ratings)](https://appshunter.io/ios/app/pooltracpro/id730187022/reviews) | **[4.4 (5 ratings)](https://appshunter.io/ios/app/lsi-calculator/id1233049990/reviews)** |
| Number of ratings | **7** | 5 |
| Positive reviews | 36.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 9 MB | 52 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [PoolTrac.com](https://appshunter.io/developer/730187025) | [Pure Planet Science & Technology, Inc.](https://appshunter.io/developer/1234693265) |

## What reviewers say

### PoolTracPro

[App page](https://appshunter.io/ios/app/pooltracpro/id730187022)

This app streamlines pool management for businesses by offering chemical calculation, record-keeping, and customer communication tools. It allows for tracking commercial and residential pools, chemical usage, and creating detailed log entries, service calls, and work orders. Go paperless with email reporting and submit photo notes for enhanced service.

**Highlights:** Track commercial and residential pools, Chemical calculation and usage tracking, Paperless email reporting, Detailed log entry creation, Service call and work order management, Photo notes and equipment tracking, QR code scanning

**Features:** macOS Compatibility

**In-app purchases:** none


### LSI Calculator

[App page](https://appshunter.io/ios/app/lsi-calculator/id1233049990)

This app provides tools and educational resources to help users manage water systems, focusing on eco-friendly treatments for pools and spas. It aims to make water maintenance accessible to everyone, regardless of their experience level.

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PoolTracPro free?

PoolTracPro is free to download, with no in-app purchases.

### Is LSI Calculator free?

LSI Calculator is free to download, with no in-app purchases.

### Which has better reviews, PoolTracPro or LSI Calculator?

LSI Calculator is rated higher. PoolTracPro averages 4.1 out of 5 from 7 ratings, while LSI Calculator averages 4.4 from 5 ratings.

### Do PoolTracPro or LSI Calculator have ads?

Neither PoolTracPro nor LSI Calculator shows ads.

### Which is updated more often, PoolTracPro or LSI Calculator?

PoolTracPro ships an update every 2 months, and LSI Calculator every 2 months. Most recently, PoolTracPro was updated on July 28, 2026 and LSI Calculator on June 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*