# ABM Bus vs SOU iD

The clearest difference is iOS requirement: SOU iD at 11.0 against ABM Bus's 15.1. 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.

ABM Bus ships an update every 2 weeks, SOU iD every 3 weeks. The most recent releases landed on October 12, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | ABM Bus | SOU iD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 38 MB | 69 MB |
| Requires iOS | 15.1 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ABM Tecnologia](https://appshunter.io/developer/1359762809) | [Fundacao CPQD Centro de Pesquisa e Desenvolvimento](https://appshunter.io/developer/410369751) |

## What reviewers say

### ABM Bus

[App page](https://appshunter.io/ios/app/abm-bus/id1470396003)

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

**In-app purchases:** none


### SOU iD

[App page](https://appshunter.io/ios/app/sou-id/id1662648501)

**In-app purchases:** none


## Frequently asked questions

### Is ABM Bus free?

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

### Is SOU iD free?

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

### Do ABM Bus or SOU iD have ads?

Neither ABM Bus nor SOU iD shows ads.

### Which is updated more often, ABM Bus or SOU iD?

ABM Bus ships an update every 2 weeks, and SOU iD every 3 weeks. Most recently, ABM Bus was updated on October 12, 2026 and SOU iD on September 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*