# Meu Fox vs Virtual Ringelmann

The clearest difference is iOS requirement: Meu Fox at 12.4 against Virtual Ringelmann's 15.0. 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 monthly. The most recent releases landed on October 29, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Meu Fox | Virtual Ringelmann |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | — | Free |
| Size | 27 MB | 73 MB |
| Requires iOS | **12.4** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Lobo](https://appshunter.io/developer/884177619) | [ACT Sistemas LTDA](https://appshunter.io/developer/1569392578) |

## What reviewers say

### Meu Fox

[App page](https://appshunter.io/ios/app/meu-fox/id1534333738)

**Features:** macOS Compatibility

**In-app purchases:** none


### Virtual Ringelmann

[App page](https://appshunter.io/ios/app/virtual-ringelmann/id1569392576)

This app aids in black smoke inspections by virtualizing the Ringelmann Scale methodology through your device's camera. It streamlines the process for assessing emissions from diesel engines and industrial chimneys, supporting environmental compliance and decision-making.

**Highlights:** Virtual Ringelmann Scale measurement, Supports vehicular and stationary surveillance, Automatic pollution index identification, Generates photographic evidence, Web portal integration for reports, Historical data logging

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Meu Fox free?

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

### Is Virtual Ringelmann free?

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

### Do Meu Fox or Virtual Ringelmann have ads?

Neither Meu Fox nor Virtual Ringelmann shows ads.

### Which is updated more often, Meu Fox or Virtual Ringelmann?

Meu Fox ships an update monthly, and Virtual Ringelmann monthly. Most recently, Meu Fox was updated on October 29, 2026 and Virtual Ringelmann on November 3, 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.*