# O3 Easy vs H2Blaster

The clearest difference is device support: O3 Easy at 3 against H2Blaster's 1. O3 Easy also leads on iOS requirement (11.0 vs 16.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | O3 Easy | H2Blaster |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 31 MB | 33 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MAHLE Aftermarket Italy S.p.A.](https://appshunter.io/developer/1321815882) | [TEXA SpA](https://appshunter.io/developer/547539591) |

## What reviewers say

### O3 Easy

[App page](https://appshunter.io/ios/app/o3-easy/id1512726279)

Control and monitor your ozone generator remotely. Generate detailed reports of its processes and send them via email as PDF files. This app helps you manage your equipment efficiently.

**Highlights:** Remote ozone generator management, Process monitoring, Report generation, PDF report export, Email report sending

**Features:** macOS Compatibility

**In-app purchases:** none


### H2Blaster

[App page](https://appshunter.io/ios/app/h2blaster-test-drive-app/id1618924251)

**In-app purchases:** none


## Frequently asked questions

### Is O3 Easy free?

O3 Easy is free to download, with no in-app purchases.

### Is H2Blaster free?

H2Blaster is free to download, with no in-app purchases.

### Do O3 Easy or H2Blaster have ads?

Neither O3 Easy nor H2Blaster shows ads.

### Which is updated more often, O3 Easy or H2Blaster?

O3 Easy ships an update every 3 months, and H2Blaster every 3 months. Most recently, O3 Easy was updated on October 20, 2026 and H2Blaster on October 6, 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.*