# Sia Security vs Tamoios Free Flow

The clearest difference is update cadence: Tamoios Free Flow at every 3 weeks against Sia Security's every 2 months. Sia Security's advantage is iOS requirement (13.0 vs 15.0). 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.

Sia Security ships an update every 2 months, Tamoios Free Flow every 3 weeks. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sia Security | Tamoios Free Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/tamoios-free-flow/id6737204015/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 67 MB | 35 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ECONDOS SISTEMAS LTDA - ME](https://appshunter.io/developer/1144142573) | [ALPDEX PROCESSAMENTO DE DADOS LTDA ME](https://appshunter.io/developer/923508664) |

## What reviewers say

### Sia Security

[App page](https://appshunter.io/ios/app/sia-security/id6502765769)

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

**In-app purchases:** none


### Tamoios Free Flow

[App page](https://appshunter.io/ios/app/tamoios-free-flow/id6737204015)

This official app allows users to pay Free Flow tolls directly from their mobile devices. It also provides an SOS button for emergency roadside assistance and access to traffic cameras, web radio, and useful contact information for the highway.

**Highlights:** Free Flow toll payment, SOS emergency button, Highway camera feeds, Web radio access, Toll rate consultation, Useful contact information

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

**In-app purchases:** none


## Frequently asked questions

### Is Sia Security free?

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

### Is Tamoios Free Flow free?

Tamoios Free Flow is free to download, with no in-app purchases.

### Do Sia Security or Tamoios Free Flow have ads?

Neither Sia Security nor Tamoios Free Flow shows ads.

### Which is updated more often, Sia Security or Tamoios Free Flow?

Sia Security ships an update every 2 months, and Tamoios Free Flow every 3 weeks. Most recently, Sia Security was updated on October 24, 2026 and Tamoios Free Flow on October 30, 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.*