# Observa vs AC Seg

The clearest difference is device support: Observa at 3 against AC Seg's 1. Observa also leads on iOS requirement (13.0 vs 16.0). 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.

Observa ships an update every 6 weeks, AC Seg every 3 weeks. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Observa | AC Seg |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 22 MB | 125 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sentran Servicos Especializados de Transito Ltda](https://appshunter.io/developer/1515580805) | [SystemSat](https://appshunter.io/developer/985734878) |

## What reviewers say

### Observa

[App page](https://appshunter.io/ios/app/observa/id6449848490)

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

**In-app purchases:** none


### AC Seg

[App page](https://appshunter.io/ios/app/ac-seg/id6782990815)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Observa free?

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

### Is AC Seg free?

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

### Do Observa or AC Seg have ads?

Neither Observa nor AC Seg shows ads.

### Which is updated more often, Observa or AC Seg?

Observa ships an update every 6 weeks, and AC Seg every 3 weeks. Most recently, Observa was updated on October 14, 2026 and AC Seg on October 7, 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.*