OSIRIS Erasmus University vs Parro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OSIRIS Erasmus University
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.
- Access to marks
- Updated timetable
- Receive notifications
- News feed
- Student portal
Read full descriptionHide full description
Don't want to miss anything? You won’t, with the Osiris app for Erasmus University students! With this app on your phone, you'll always have access to your marks. Thanks to the updated timetable, you'll never find yourself waiting in the wrong lecture hall and you'll receive all notifications on your mobile. And the news feed will make sure that you always know the latest news.
Parro
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.
- Student information management
- Secure photo and video sharing
- Activity and meeting organization
- School-wide announcements
- Absence and privacy reporting
- Silent mode for schedule control
Read full descriptionHide full description
Parent communication from A to Z. Parro is the parent app from ParnasSys for communication, organization, and administration. The robust integration between Parro and ParnasSys ensures that all administrative tasks are handled effortlessly. This includes managing absences and privacy preferences, while also keeping medical and contact information for students readily accessible. Moreover, you maintain control over your own schedule, utilizing features such as silent mode. You can securely share photos, videos, and other information with parents, easily organize activities and parent meetings, swiftly send school-wide announcements or calander items, and allow parents to conveniently report absences and privacy preferences. For more information, please visit www.parnassys.nl/parro.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | OSIRIS Erasmus University | Parro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | — | 14.3% of reviews |
| Number of ratings | 1 | 3 — better |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 34 MB | 70 MB |
| Age rating | 4+ | 12+ |
| Developer | CACI bv | Topicus Onderwijs B.V. |
Customer experience
OSIRIS Erasmus University
Parro
In-app purchases
OSIRIS Erasmus University
No in-app purchases
Parro
No in-app purchases
