# InfectRisk vs Sniffly

The clearest difference is in-app purchases: Sniffly at none against InfectRisk's 2. Sniffly also leads on iOS requirement (15.1 vs 18.0). InfectRisk's advantage is update cadence (every 3 days vs every 11 days). On price, ads and device support there is nothing between them.

Both are free to download. InfectRisk sells 2 in-app purchases, starting at $0.99 per year. Sniffly asks for nothing beyond the download.

InfectRisk ships an update every 3 days, Sniffly every 11 days. The most recent releases landed on September 13, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | InfectRisk | Sniffly |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 11 days |
| Size | 11 MB | 31 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Renderei Martin GmbH](https://appshunter.io/developer/1882813459) | [Christian Wehle](https://appshunter.io/developer/1885553418) |

## What reviewers say

### InfectRisk

[App page](https://appshunter.io/ios/app/infectrisk/id6760133442)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Subscription | $0.99 | per year |
| Lifetime Purchase | $3.99 | one-time |


### Sniffly

[App page](https://appshunter.io/ios/app/sniffly/id6760657704)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is InfectRisk free?

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

### Is Sniffly free?

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

### Do InfectRisk or Sniffly have ads?

Neither InfectRisk nor Sniffly shows ads.

### Which is updated more often, InfectRisk or Sniffly?

InfectRisk ships an update every 3 days, and Sniffly every 11 days. Most recently, InfectRisk was updated on September 13, 2026 and Sniffly on September 18, 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.*