# iMAAP vs Legionella Guard

The clearest difference is update cadence: Legionella Guard at every 4 days against iMAAP's every 2 months. iMAAP's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

iMAAP ships an update every 2 months, Legionella Guard every 4 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iMAAP | Legionella Guard |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 68 MB | 35 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [TRL Ltd](https://appshunter.io/developer/1471971553) | [CERTNOW LIMITED](https://appshunter.io/developer/6785982428) |

## What reviewers say

### iMAAP

[App page](https://appshunter.io/ios/app/imaap/id1471971554)

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

**In-app purchases:** none


### Legionella Guard

[App page](https://appshunter.io/ios/app/legionella-guard/id6785982426)

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

**In-app purchases:** none


## Frequently asked questions

### Is iMAAP free?

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

### Is Legionella Guard free?

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

### Do iMAAP or Legionella Guard have ads?

Neither iMAAP nor Legionella Guard shows ads.

### Which is updated more often, iMAAP or Legionella Guard?

iMAAP ships an update every 2 months, and Legionella Guard every 4 days. Most recently, iMAAP was updated on November 3, 2026 and Legionella Guard on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*