# PoolVault vs ChlorCast

The clearest difference is in-app purchases: ChlorCast at none against PoolVault's 1. PoolVault's advantage is iOS requirement (16.0 vs 26.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. PoolVault sells 1 in-app purchase, starting at $4.99 per month. ChlorCast asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PoolVault against 5.0 for ChlorCast. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

PoolVault ships an update fortnightly, ChlorCast every 8 days. The most recent releases landed on September 29, 2026 and July 21, 2026 respectively.

## The numbers

| Metric | PoolVault | ChlorCast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/poolvault/id6758897439/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/chlorcast/id6777863208/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 8 days** |
| Monetization | Freemium | **Free** |
| Size | 27 MB | 6 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cass Mieczakowski](https://appshunter.io/developer/1835322005) | [Sean OBrien](https://appshunter.io/developer/6777834311) |

## What reviewers say

### 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 |


### ChlorCast

[App page](https://appshunter.io/ios/app/chlorcast/id6777863208)

This app simplifies pool care by logging water tests, providing chemistry guidance, and forecasting chlorine levels. It helps users understand their pool's needs and maintain balanced water with practical, actionable advice.

**Highlights:** Log quick and full chemistry tests, Get chemistry fix recommendations, Forecast chlorine loss with weather data, Track test history and water changes, Manage chemical inventory, Set maintenance reminders

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

**In-app purchases:** none


## Frequently asked questions

### Is PoolVault free?

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

### Is ChlorCast free?

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

### Which has better reviews, PoolVault or ChlorCast?

PoolVault and ChlorCast are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do PoolVault or ChlorCast have ads?

Neither PoolVault nor ChlorCast shows ads.

### Which is updated more often, PoolVault or ChlorCast?

PoolVault ships an update fortnightly, and ChlorCast every 8 days. Most recently, PoolVault was updated on September 29, 2026 and ChlorCast on July 21, 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.*