# Simple Pool vs Acquapilot Scan

The clearest difference is update cadence: Simple Pool at every 6 days against Acquapilot Scan's fortnightly. Acquapilot Scan's advantage is iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Simple Pool sells 1 one-off in-app purchase and Acquapilot Scan sells 4 in-app purchases, starting at $6.99 per year. Whichever you choose, the download price is not the number that matters.

Simple Pool ships an update every 6 days, Acquapilot Scan fortnightly. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Simple Pool | Acquapilot Scan |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (21 ratings)](https://appshunter.io/ios/app/simple-pool-chemistry-and-math/id6744664712/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 39 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grey Park, LLC](https://appshunter.io/developer/1739831354) | [Alexandre Hubeau](https://appshunter.io/developer/1886651402) |

## What reviewers say

### Simple Pool

[App page](https://appshunter.io/ios/app/simple-pool-chemistry-and-math/id6744664712)

This app helps you precisely test, dose, and track your pool and spa water chemistry. It offers practical dosing recommendations and tools to simplify routine maintenance for various pool types. Get accurate chemical calculations without ongoing fees.

**Highlights:** Water test logging, Dosing recommendations, Chemical tracking, LSI/CSI monitoring, Shock treatment mode, Test reminders, Chemical effects preview

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SimplePool - Lifetime | $9.99 | one-time |


### Acquapilot Scan

[App page](https://appshunter.io/ios/app/acquapilot-scan/id6790566693)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scan — 1 pool | $6.99 | per year |
| Scan — 3 pools | $14.99 | per year |
| Scan — 10 pools | $22.99 | per year |
| Scan — 100 pools | $129.00 | per year |


## Frequently asked questions

### Is Simple Pool free?

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

### Is Acquapilot Scan free?

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

### Do Simple Pool or Acquapilot Scan have ads?

Neither Simple Pool nor Acquapilot Scan shows ads.

### Which is updated more often, Simple Pool or Acquapilot Scan?

Simple Pool ships an update every 6 days, and Acquapilot Scan fortnightly. Most recently, Simple Pool was updated on October 20, 2026 and Acquapilot Scan on October 11, 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.*