# APPOutDoor vs Pool Log

The clearest difference is in-app purchases: APPOutDoor at none against Pool Log's 2. APPOutDoor also leads on iOS requirement (12.0 vs 26.0). Pool Log's advantage is update cadence (every 2 weeks vs every 5 months). On price, 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. APPOutDoor asks for nothing beyond the download.

APPOutDoor ships an update every 5 months, Pool Log every 2 weeks. The most recent releases landed on September 21, 2026 and August 19, 2026 respectively.

## The numbers

| Metric | APPOutDoor | Pool Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (6 ratings)](https://appshunter.io/ios/app/pool-log/id6744295287/reviews)** |
| Number of ratings | — | **6** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 38 MB | 11 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [http://www.dayingtech.com](https://appshunter.io/developer/1355656782) | [Michael Holloway](https://appshunter.io/developer/877302832) |

## What reviewers say

### APPOutDoor

[App page](https://appshunter.io/ios/app/appoutdoor/id6475955962)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is APPOutDoor free?

APPOutDoor is free to download, with no in-app purchases.

### Is Pool Log free?

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

### Do APPOutDoor or Pool Log have ads?

Neither APPOutDoor nor Pool Log shows ads.

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

APPOutDoor ships an update every 5 months, and Pool Log every 2 weeks. Most recently, APPOutDoor was updated on September 21, 2026 and Pool Log on August 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.*