# ULC S.A. vs 504 Express

The clearest difference is update cadence: 504 Express at every 5 weeks against ULC S.A.'s every 33 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.

ULC S.A. ships an update every 33 months, 504 Express every 5 weeks. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | ULC S.A. | 504 Express |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (6 ratings)](https://appshunter.io/ios/app/504-express/id6475613266/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 46 MB | 58 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Ortez](https://appshunter.io/developer/1327541522) | [SISOFTC](https://appshunter.io/developer/1302911829) |

## What reviewers say

### ULC S.A.

[App page](https://appshunter.io/ios/app/ulc-sa/id1550430689)

**Features:** macOS Compatibility

**In-app purchases:** none


### 504 Express

[App page](https://appshunter.io/ios/app/504-express/id6475613266)

Track your online purchases from the moment they arrive at your Miami locker. Receive notifications and full traceability with status bars and location windows. Access comprehensive support to stay informed about your shipments.

**Highlights:** Package tracking from Miami locker, Real-time notifications, Full shipment traceability, Status bar progress updates, Location windows, Comprehensive customer support

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

**In-app purchases:** none


## Frequently asked questions

### Is ULC S.A. free?

ULC S.A. is free to download, with no in-app purchases.

### Is 504 Express free?

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

### Do ULC S.A. or 504 Express have ads?

Neither ULC S.A. nor 504 Express shows ads.

### Which is updated more often, ULC S.A. or 504 Express?

ULC S.A. ships an update every 33 months, and 504 Express every 5 weeks. Most recently, ULC S.A. was updated on October 16, 2026 and 504 Express on October 17, 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.*