# H2OnAlert vs Aquassist

The clearest difference is update cadence: H2OnAlert at weekly against Aquassist's every 3 weeks. H2OnAlert also leads on iOS requirement (13.0 vs 15.1). 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.

H2OnAlert ships an update weekly, Aquassist every 3 weeks. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | H2OnAlert | Aquassist |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 22 MB | 64 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intuitive Water Systems Inc.](https://appshunter.io/developer/1455652656) | [Aquassist Inc.](https://appshunter.io/developer/1789817098) |

## What reviewers say

### H2OnAlert

[App page](https://appshunter.io/ios/app/h2onalert/id1455652658)

**Features:** macOS Compatibility

**In-app purchases:** none


### Aquassist

[App page](https://appshunter.io/ios/app/aquassist/id1578564758)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is H2OnAlert free?

H2OnAlert is free to download, with no in-app purchases.

### Is Aquassist free?

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

### Do H2OnAlert or Aquassist have ads?

Neither H2OnAlert nor Aquassist shows ads.

### Which is updated more often, H2OnAlert or Aquassist?

H2OnAlert ships an update weekly, and Aquassist every 3 weeks. Most recently, H2OnAlert was updated on October 4, 2026 and Aquassist on October 12, 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.*