# OSRB Parent vs Classis GBA

The clearest difference is update cadence: OSRB Parent at every 3 weeks against Classis GBA's every 11 months. OSRB Parent also leads on iOS requirement (12.0 vs 18.0). 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.

OSRB Parent ships an update every 3 weeks, Classis GBA every 11 months. The most recent releases landed on October 17, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | OSRB Parent | Classis GBA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/osrb-parent/id1341308418/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 11 months |
| Monetization | Free | — |
| Size | 33 MB | 19 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Thinkit doo](https://appshunter.io/developer/1392908612) | [MicroCodes.me](https://appshunter.io/developer/1831591571) |

## What reviewers say

### OSRB Parent

[App page](https://appshunter.io/ios/app/osrb-parent/id1341308418)

This app facilitates communication between parents and staff of the "Ruđer Bošković" International Educational System. It provides access to announcements, electronic gradebooks, subject information, galleries, and notifications.

**Highlights:** Announcement board, Electronic gradebook, Subjects and textbooks, Photo gallery, Push notifications

**Features:** macOS Compatibility

**In-app purchases:** none


### Classis GBA

[App page](https://appshunter.io/ios/app/classis-gba/id6749649314)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OSRB Parent free?

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

### Is Classis GBA free?

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

### Do OSRB Parent or Classis GBA have ads?

Neither OSRB Parent nor Classis GBA shows ads.

### Which is updated more often, OSRB Parent or Classis GBA?

OSRB Parent ships an update every 3 weeks, and Classis GBA every 11 months. Most recently, OSRB Parent was updated on October 17, 2026 and Classis GBA on October 16, 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.*