# Pool Log vs PoolCoach

The clearest difference is monetization model: Pool Log at free against PoolCoach's subscription. PoolCoach's advantage is update cadence (weekly vs every 4 weeks) and rating (5.0 vs 4.8). 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 PoolCoach sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

PoolCoach holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

Pool Log ships an update every 4 weeks, PoolCoach weekly. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Pool Log | PoolCoach |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (8 ratings)](https://appshunter.io/ios/app/pool-log/id6744295287/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/poolcoach-water-calculator/id6786476585/reviews)** |
| Number of ratings | **8** | 3 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | **Free** | Subscription |
| Size | 14 MB | 38 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Michael Holloway](https://appshunter.io/developer/877302832) | [Coach Platform LLC](https://appshunter.io/developer/6786476587) |

## 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 |


### PoolCoach

[App page](https://appshunter.io/ios/app/poolcoach-water-calculator/id6786476585)

This app provides exact chemical dosing recommendations for your pool or spa based on your specific water test results and volume. It helps diagnose and fix common pool problems, tracks equipment, and saves your full season history for trend spotting. It also offers reminders for essential maintenance tasks.

**Highlights:** Exact chemical dosing calculations, Pool and spa type specific adjustments, Maintenance reminders (shock, filter), Problem diagnosis and treatment plans, Equipment tracking, Full season history logging, Bilingual (English/Spanish)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PoolCoach Monthly | $3.99 | per month |
| PoolCoach Annual | $29.99 | per year |


## Frequently asked questions

### Is Pool Log free?

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

### Is PoolCoach free?

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

### Which has better reviews, Pool Log or PoolCoach?

PoolCoach is rated higher. Pool Log averages 4.8 out of 5 from 8 ratings, while PoolCoach averages 5.0 from 3 ratings.

### Do Pool Log or PoolCoach have ads?

Neither Pool Log nor PoolCoach shows ads.

### Which is updated more often, Pool Log or PoolCoach?

Pool Log ships an update every 4 weeks, and PoolCoach weekly. Most recently, Pool Log was updated on October 24, 2026 and PoolCoach on October 19, 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.*