# Pool Log vs Skimmer

The clearest difference is update cadence: Skimmer at weekly against Pool Log's every 4 weeks. Skimmer also leads on iOS requirement (18.0 vs 26.0). Pool Log's advantage is device support (3 vs 1). On price, 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 Skimmer sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Pool Log ships an update every 4 weeks, Skimmer weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Pool Log | Skimmer |
| --- | --- | --- |
| 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 | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Weekly** |
| Monetization | Free | — |
| Size | 14 MB | 8 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Michael Holloway](https://appshunter.io/developer/877302832) | [Parra LLC](https://appshunter.io/developer/1865552317) |

## 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 |


### Skimmer

[App page](https://appshunter.io/ios/app/skimmer-pool-care-log/id6775022955)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Skimmer Pro (Monthly) | $2.99 | per month |
| Skimmer Pro (Annual) | $19.99 | per year |


## Frequently asked questions

### Is Pool Log free?

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

### Is Skimmer free?

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

### Do Pool Log or Skimmer have ads?

Neither Pool Log nor Skimmer shows ads.

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

Pool Log ships an update every 4 weeks, and Skimmer weekly. Most recently, Pool Log was updated on October 30, 2026 and Skimmer on October 28, 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.*