# Virtual Ringelmann vs Smart Acesso

The clearest difference is update cadence: Virtual Ringelmann at monthly against Smart Acesso's every 2 months. 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.

Virtual Ringelmann ships an update monthly, Smart Acesso every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Virtual Ringelmann | Smart Acesso |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | — |
| Size | 73 MB | 33 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ACT Sistemas LTDA](https://appshunter.io/developer/1569392578) | [SMART PRONTO CONTROLE DE ACESSO](https://appshunter.io/developer/1601648708) |

## What reviewers say

### 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


### Smart Acesso

[App page](https://appshunter.io/ios/app/smart-acesso/id6795260184)

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

**In-app purchases:** none


## Frequently asked questions

### Is Virtual Ringelmann free?

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

### Is Smart Acesso free?

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

### Do Virtual Ringelmann or Smart Acesso have ads?

Neither Virtual Ringelmann nor Smart Acesso shows ads.

### Which is updated more often, Virtual Ringelmann or Smart Acesso?

Virtual Ringelmann ships an update monthly, and Smart Acesso every 2 months. Most recently, Virtual Ringelmann was updated on November 3, 2026 and Smart Acesso on October 31, 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.*