# BLSD School vs ERSU Catania

The clearest difference is update cadence: BLSD School at every 2 months against ERSU Catania's every 4 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.

BLSD School ships an update every 2 months, ERSU Catania every 4 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | BLSD School | ERSU Catania |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 58 MB | 37 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mario Perricone](https://appshunter.io/developer/1523501305) | [Raimondo Giarratana](https://appshunter.io/developer/907449169) |

## What reviewers say

### BLSD School

[App page](https://appshunter.io/ios/app/blsd-school/id1636476012)

**Features:** macOS Compatibility

**In-app purchases:** none


### ERSU Catania

[App page](https://appshunter.io/ios/app/ersu-catania/id6443570180)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BLSD School free?

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

### Is ERSU Catania free?

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

### Do BLSD School or ERSU Catania have ads?

Neither BLSD School nor ERSU Catania shows ads.

### Which is updated more often, BLSD School or ERSU Catania?

BLSD School ships an update every 2 months, and ERSU Catania every 4 months. Most recently, BLSD School was updated on November 3, 2026 and ERSU Catania on November 3, 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.*