# Requis ESL vs 504 Express

The clearest difference is device support: 504 Express at 3 against Requis ESL's —. Requis ESL's advantage is iOS requirement (12.4 vs 15.6). On price 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.

## The numbers

| Metric | Requis ESL | 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 |
| Update frequency | — | Every 5 weeks |
| Monetization | — | Free |
| Size | 15 MB | 58 MB |
| Requires iOS | **12.4** | 15.6 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Josue Alvarez](https://appshunter.io/developer/1712196471) | [SISOFTC](https://appshunter.io/developer/1302911829) |

## What reviewers say

### Requis ESL

[App page](https://appshunter.io/ios/app/requis-esl/id6472096824)

**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 Requis ESL free?

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

### Is 504 Express free?

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

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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.*