# PoolChem Tracker — Pool Calculator & Tracker

> Precise pool chemical dosing and water balance calculations. (iPhone/iPad app by Jeffrey Thompson.)

- Source: https://appshunter.io/ios/app/poolchem-tracker/id6762652630 (this page in markdown: same URL + `.md`)
- Developer: [Jeffrey Thompson](https://appshunter.io/developer/1894944456)
- Category: Utilities, Lifestyle
- Price: Free with in-app purchases
- Rating: 4.50/5 from 6 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 26.4 · 12 MB
- Languages: American English
- Released: 2026-04-29
- Data updated: 2026-08-12
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/poolchem-tracker/id6762652630/reviews.md

## What is PoolChem Tracker?

Stop guessing your pool chemistry.
Enter your water test results and get precise dosing recommendations based on your pool size. PoolChem Tracker tells you what to add, how much to add, and the best order to add it, while a simple Pool Health Score helps you see how balanced your water is.

No account required. No ads. Works completely offline. Your data stays on your device.

Supports chlorine pools, saltwater (SWG) pools, and all pool types. Available in Imperial and Metric units.

Start Free
Includes 5 complete water test logs.
• Precise chemical dosing recommendations based on your pool size
• Pool Health Score (0–100) for a quick view of water balance
• Prioritized treatment recommendations to help avoid overcorrecting
• Chlorine targets that adjust based on your CYA level
• Log FC, TC, pH, Total Alkalinity, Calcium Hardness, CYA, Salt, Iron, Copper, and Phosphates
• Smart validation helps catch incorrect readings before saving
• Full LSI (Langelier Saturation Index) calculator
• Equipment maintenance tracker with reminders for skimmer, pump basket, filter, and SWG cell
• Built-in reference guide with recommended ranges
• Chemical inventory tracking
• Automatic light and dark mode

Upgrade to Pro
Unlock additional features with a one-time purchase.
• Unlimited water test history
• Charts and long-term trend tracking
• Detailed Pool Health Score breakdown
• Climate-specific water balance ranges for six climate zones
• Trend detection with actionable insights
• Maintenance history
• Custom maintenance schedules
• CSV export and import
• Advanced reminders with custom intervals
• Chemical concentration settings for common liquid chlorine and muriatic acid strengths
• Advanced LSI factor breakdown with a "What If?" simulator

Designed for Pool Owners Who Want Accurate Water Balance
PoolChem Tracker uses advanced water balance calculations, including CYA-corrected alkalinity, polynomial temperature factors, and salt-adjusted TDS, to provide detailed dosing recommendations and LSI calculations. Whether you're maintaining a traditional chlorine pool or a saltwater pool, it helps you keep your water balanced with confidence.
Built by a pool owner who wanted a simpler, more reliable way to manage pool chemistry.

## Key features

- Precise dosing recommendations
- Pool Health Score (0-100)
- Prioritized action list
- CYA-adjusted chlorine targets
- LSI calculator
- Chemical inventory tracking
- Offline functionality

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PoolChem Pro | $4.99 | one-time |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/poolchem-tracker/id6762652630/reviews.md

### 5/5 — Great app, even better developer

*2026-07-18*

PoolChem Tracker does exactly what I need. The interface is interactive and easy to use, and it gives me a ton of useful information without any hassle.

One thing I really appreciate: all the data is stored locally on my device. If you don’t want your information going out anywhere, this app has you covered.

The developer is also incredibly helpful. I reported two small issues and both were fixed within a day. He even explained what caused each problem and how he resolved it. That kind of responsiveness is rare.

Highly recommend this one. Five stars.

### 5/5 — A simple way to understand your data and protect the investment of your pool~

*2026-05-12*

I liked the detailed corrections suggestions; and the explanations within each result on how to correct. The sliding scales were cool too! Helpful app for any climate whether you use your pool three months or 12 months out of the year~Also, reasonably priced and no reoccurring cost. One, and done!

### 5/5 — Pool Owners: Get This APP

*2026-05-10*

So useful, great resource, everything you need at your fingertips!!

## Frequently asked questions about PoolChem Tracker

### What is PoolChem Tracker?

PoolChem Tracker is a mobile application designed to help pool owners manage their water chemistry. It provides precise dosing recommendations for chemicals, calculates a pool health score, and tracks various water parameters.

### Does PoolChem Tracker have ads?

No, PoolChem Tracker is completely ad-free. The description explicitly states 'No ads' and that your data never leaves your device.

### How much does PoolChem Tracker cost?

The basic version of PoolChem Tracker is free and includes features like dosing recommendations and a pool health score. An optional Pro upgrade is available for $4.99 as a one-time purchase.

### What pool types does PoolChem Tracker support?

PoolChem Tracker works with chlorine pools, salt water (SWG) pools, and all other pool types. It also supports both Imperial and Metric units for measurements.

### Can I use PoolChem Tracker offline?

Yes, PoolChem Tracker works completely offline. You do not need an internet connection or an account to use its core features.

### What makes PoolChem Tracker's calculations more accurate?

PoolChem Tracker uses advanced calculations, including CYA-corrected alkalinity and polynomial temperature factors, for more accurate water balance than simplified formulas often found in other apps.

### What is the Pool Health Score in PoolChem Tracker?

The Pool Health Score is a rating from 0 to 100 that indicates how balanced your pool water is at a glance. The Pro version offers a breakdown of which parameters contribute to the score.

### How often is PoolChem Tracker updated?

The latest version of PoolChem Tracker is 1.16, which was last updated on June 25, 2026. This indicates a consistent update schedule from the developer.

## Version history (last 5 releases)

### 1.22 — 2026-08-11

v1.22 — Corrected LSI calculation (improved temperature and calcium factor accuracy); historical readings automatically updated to reflect the corrected formula.

### 1.20.4 — 2026-07-27

Added light and dark mode where the app automatically follows your device's display setting, no manual toggle needed.
Fixed dosing guide amounts on the reference tab for muriatic acid, soda ash, and calcium chloride so the values now match what the recommendation engine calculates

### 1.20.3 — 2026-07-24

Fixed a bug where a CC recommendation to boost chlorine would appear even when free chlorine was already at or above its target. Pro users can also set their liquid chlorine concentration (6%, 10%, or 12.5%) so dosing amounts match the exact product in their hand.

### 1.20.2 — 2026-07-18

Bug fix for Pro subscribers: your subscription now stays active after an app update without needing to restore. Thanks to JW for the report.

### 1.20.1 — 2026-07-12

Fixed a bug where the tab bar would scroll up with the page content when scrolling.

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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 2026-08-12.*