# Pool Chemical LogBook vs PoolVault

The clearest difference is iOS requirement: PoolVault at 16.0 against Pool Chemical LogBook's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Pool Chemical LogBook sells 10 in-app purchases, starting at $11.99 per month and PoolVault sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Pool Chemical LogBook ships an update every 8 days, PoolVault fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Pool Chemical LogBook | PoolVault |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/poolvault/id6758897439/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 8 days** | Fortnightly |
| Monetization | — | Freemium |
| Size | 27 MB | 27 MB |
| Requires iOS | 18.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Pool By Engineer INC](https://appshunter.io/developer/1843551094) | [Cass Mieczakowski](https://appshunter.io/developer/1835322005) |

## What reviewers say

### Pool Chemical LogBook

[App page](https://appshunter.io/ios/app/pool-chemical-logbook/id6753330664)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $11.99 | per month |
| 2 Seat Monthly Plan | $23.99 | per month |
| 3 Seat Monthly Plan | $35.99 | per month |
| 4 Seat Monthly Plan | $47.99 | per month |
| 5 Seat Monthly Plan | $59.99 | per month |
| 6 Seat Monthly Plan | $69.99 | per month |
| 7 Seat Monthly Plan | $84.99 | per month |
| 8 Seat Monthly Plan | $94.99 | per month |
| 9 Seat Monthly Plan | $109.99 | per month |
| 10 Seat Monthly Plan | $119.99 | per month |


### PoolVault

[App page](https://appshunter.io/ios/app/poolvault/id6758897439)

This app simplifies pool maintenance by using AI to analyze test strips from a photo. It provides a health score, personalized chemical recommendations, and tracks your pool's history and equipment. Manage your pool care effortlessly with smart insights and a maintenance log.

**Highlights:** AI test strip scanning, Pool health score, Personalized chemical recommendations, Chemical inventory tracking, Full history and trends, Equipment and maintenance logging, Troubleshooting wizard

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pool Vault Premium | $4.99 | per month |


## Frequently asked questions

### Is Pool Chemical LogBook free?

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

### Is PoolVault free?

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

### Do Pool Chemical LogBook or PoolVault have ads?

Neither Pool Chemical LogBook nor PoolVault shows ads.

### Which is updated more often, Pool Chemical LogBook or PoolVault?

Pool Chemical LogBook ships an update every 8 days, and PoolVault fortnightly. Most recently, Pool Chemical LogBook was updated on October 30, 2026 and PoolVault 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.*