# Pool Log vs PoolChem Tracker

The clearest difference is monetization model: Pool Log at free against PoolChem Tracker's freemium. Pool Log also leads on rating (4.7 vs 4.5). PoolChem Tracker's advantage is update cadence (every 5 days vs every 2 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Pool Log sells 2 in-app purchases, starting at $0.99 per month and PoolChem Tracker sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Pool Log holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 6 and 6 respectively.

Pool Log ships an update every 2 weeks, PoolChem Tracker every 5 days. The most recent releases landed on September 30, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Pool Log | PoolChem Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (6 ratings)](https://appshunter.io/ios/app/pool-log/id6744295287/reviews)** | [4.5 (6 ratings)](https://appshunter.io/ios/app/poolchem-tracker/id6762652630/reviews) |
| Number of ratings | 6 | 6 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | **Free** | Freemium |
| Size | 11 MB | 12 MB |
| Requires iOS | **26.0** | 26.4 |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Michael Holloway](https://appshunter.io/developer/877302832) | [Jeffrey Thompson](https://appshunter.io/developer/1894944456) |

## What reviewers say

### Pool Log

[App page](https://appshunter.io/ios/app/pool-log/id6744295287)

This app provides precise chemical dosing instructions for pools and spas based on your test results. It tracks multiple water bodies, integrates local weather data, and offers advanced features like SLAM mode for algae and CSI calculations. All data is stored locally for privacy.

**Highlights:** Precise chemical dosing instructions, Manages multiple pools and spas, Weather-aware test result tracking, SLAM mode for algae treatment, Calcite Saturation Index (CSI) calculation, Chemical addition logging, Maintenance task tracking

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $0.99 | per month |
| Annual Plan | $7.99 | per year |


### PoolChem Tracker

[App page](https://appshunter.io/ios/app/poolchem-tracker/id6762652630)

This app provides precise pool chemical dosing recommendations based on your test results and pool size. It calculates a health score for your water and offers a prioritized action list to maintain balance. Works offline with no account required.

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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

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


## Frequently asked questions

### Is Pool Log free?

Pool Log is free to download, with in-app purchases available.

### Is PoolChem Tracker free?

PoolChem Tracker is free to download, with in-app purchases available.

### Which has better reviews, Pool Log or PoolChem Tracker?

Pool Log is rated higher. Pool Log averages 4.7 out of 5 from 6 ratings, while PoolChem Tracker averages 4.5 from 6 ratings.

### Do Pool Log or PoolChem Tracker have ads?

Neither Pool Log nor PoolChem Tracker shows ads.

### Which is updated more often, Pool Log or PoolChem Tracker?

Pool Log ships an update every 2 weeks, and PoolChem Tracker every 5 days. Most recently, Pool Log was updated on September 30, 2026 and PoolChem Tracker on October 3, 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.*