# Pool Log vs ACD Pool Water Test

The clearest difference is in-app purchases: ACD Pool Water Test at none against Pool Log's 2. ACD Pool Water Test also leads on iOS requirement (14 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Pool Log sells 2 in-app purchases, starting at $0.99 per month. ACD Pool Water Test asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 4 weeks. The most recent releases landed on October 15, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Pool Log | ACD Pool Water Test |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (8 ratings)](https://appshunter.io/ios/app/pool-log/id6744295287/reviews)** | — |
| Number of ratings | **8** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | Every 4 weeks |
| Monetization | Free | — |
| Size | 14 MB | 43 MB |
| Requires iOS | 26.0 | **14** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Holloway](https://appshunter.io/developer/877302832) | [XY AQUA CARE PTY LTD](https://appshunter.io/developer/1814517034) |

## 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 |


### ACD Pool Water Test

[App page](https://appshunter.io/ios/app/acd-pool-water-test/id6745918348)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Pool Log free?

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

### Is ACD Pool Water Test free?

ACD Pool Water Test is free to download, with no in-app purchases.

### Do Pool Log or ACD Pool Water Test have ads?

Neither Pool Log nor ACD Pool Water Test shows ads.

### Which is updated more often, Pool Log or ACD Pool Water Test?

Pool Log ships an update every 4 weeks, and ACD Pool Water Test every 4 weeks. Most recently, Pool Log was updated on October 15, 2026 and ACD Pool Water Test on October 4, 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.*