# Pool Operator vs Prepared Scout

The clearest difference is update cadence: Prepared Scout at every 9 days against Pool Operator's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Pool Operator sells 2 in-app purchases, starting at $9.99 per month and Prepared Scout sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Pool Operator ships an update every 5 months, Prepared Scout every 9 days. The most recent releases landed on November 5, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Pool Operator | Prepared Scout |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/pool-operator-cpo-prep-2026/id6761590441/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 7 MB | 153 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Deeun Inc.](https://appshunter.io/developer/1691824695) | [SEDX LLC](https://appshunter.io/developer/6776048808) |

## What reviewers say

### Pool Operator

[App page](https://appshunter.io/ios/app/pool-operator-cpo-prep-2026/id6761590441)

This app helps pool operators calculate precise chemical dosages for water balance and understand water chemistry. It also includes a daily operations log, turnover rate calculator, and extensive practice questions and mock exams for CPO certification.

**Highlights:** Precise chemical dosage calculation, Langelier Saturation Index analysis, Turnover Rate Calculator, Daily Pool Operations Log with CSV export, 700+ CPO practice questions with explanations, Full mock CPO exam simulation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pool Operator Pro Monthly | $9.99 | per month |
| Pool Operator Pro Lifetime | $24.99 | one-time |


### Prepared Scout

[App page](https://appshunter.io/ios/app/prepared-scout/id6787323976)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Tools | $0.99 | one-time |


## Frequently asked questions

### Is Pool Operator free?

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

### Is Prepared Scout free?

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

### Do Pool Operator or Prepared Scout have ads?

Neither Pool Operator nor Prepared Scout shows ads.

### Which is updated more often, Pool Operator or Prepared Scout?

Pool Operator ships an update every 5 months, and Prepared Scout every 9 days. Most recently, Pool Operator was updated on November 5, 2026 and Prepared Scout on October 30, 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.*