# Astralpool Toolbox vs Pool Salt Calculator

The clearest difference is update cadence: Pool Salt Calculator at every 2 weeks against Astralpool Toolbox's every 3 months. Astralpool Toolbox's advantage is iOS requirement (8.0 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Astralpool Toolbox ships an update every 3 months, Pool Salt Calculator every 2 weeks. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Astralpool Toolbox | Pool Salt Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 13 MB | 25 MB |
| Requires iOS | **8.0** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [FLUIDRA S.A.](https://appshunter.io/developer/725447633) | [Norbert Makk](https://appshunter.io/developer/1720445642) |

## What reviewers say

### Astralpool Toolbox

[App page](https://appshunter.io/ios/app/astralpool-toolbox/id1080372620)

**Features:** macOS Compatibility

**In-app purchases:** none


### Pool Salt Calculator

[App page](https://appshunter.io/ios/app/pool-salt-calculator/id6670433963)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Astralpool Toolbox free?

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

### Is Pool Salt Calculator free?

Pool Salt Calculator is free to download, with no in-app purchases.

### Do Astralpool Toolbox or Pool Salt Calculator have ads?

Neither Astralpool Toolbox nor Pool Salt Calculator shows ads.

### Which is updated more often, Astralpool Toolbox or Pool Salt Calculator?

Astralpool Toolbox ships an update every 3 months, and Pool Salt Calculator every 2 weeks. Most recently, Astralpool Toolbox was updated on October 26, 2026 and Pool Salt Calculator on October 27, 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.*