# OSIRIS Erasmus University vs Parro

The clearest difference is rating: OSIRIS Erasmus University at 5.0 against Parro's 2.3. OSIRIS Erasmus University also leads on iOS requirement (11.0 vs 15.0). Parro's advantage is update cadence (every 2 weeks vs every 5 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OSIRIS Erasmus University holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

OSIRIS Erasmus University ships an update every 5 months, Parro every 2 weeks. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | OSIRIS Erasmus University | Parro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/osiris-erasmus-university/id961337313/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/parro/id1053388628/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 14.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 34 MB | 70 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [CACI bv](https://appshunter.io/developer/961337312) | [Topicus Onderwijs B.V.](https://appshunter.io/developer/517215699) |

## What reviewers say

### OSIRIS Erasmus University

[App page](https://appshunter.io/ios/app/osiris-erasmus-university/id961337313)

This app provides Erasmus University students with essential academic information. Access your grades, view your updated timetable, and stay informed with the latest news and notifications.

**Highlights:** Access to marks, Updated timetable, Receive notifications, News feed, Student portal

**Features:** macOS Compatibility

**In-app purchases:** none


### Parro

[App page](https://appshunter.io/ios/app/parro/id1053388628)

Facilitates seamless communication and organization between parents and educational institutions. Manage student information, schedules, and share updates securely. Streamline administrative tasks like absence reporting and privacy settings.

**Highlights:** Student information management, Secure photo and video sharing, Activity and meeting organization, School-wide announcements, Absence and privacy reporting, Silent mode for schedule control

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

**In-app purchases:** none


## Frequently asked questions

### Is OSIRIS Erasmus University free?

OSIRIS Erasmus University is free to download, with no in-app purchases.

### Is Parro free?

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

### Which has better reviews, OSIRIS Erasmus University or Parro?

OSIRIS Erasmus University is rated higher. OSIRIS Erasmus University averages 5.0 out of 5 from 1 ratings, while Parro averages 2.3 from 3 ratings.

### Do OSIRIS Erasmus University or Parro have ads?

Neither OSIRIS Erasmus University nor Parro shows ads.

### Which is updated more often, OSIRIS Erasmus University or Parro?

OSIRIS Erasmus University ships an update every 5 months, and Parro every 2 weeks. Most recently, OSIRIS Erasmus University was updated on November 1, 2026 and Parro on November 6, 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.*