OSG App vs TfK Eltern
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OSG App
This app provides quick access to the OSG Mainz portal, offering personalized class schedules and substitute plans. It facilitates digital class registers and absence management, with push notifications for messages and important updates.
- Personalized class and substitute schedules
- Digital class register
- Absence management
- Push notifications for messages
- Quick portal connection
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Die OSG App ermöglicht eine schnelle Anbindung an das Portal des OSG Mainz. Stunden- und Vertretungspläne sind schnell und individualisiert verfügbar. Das digitale Klassenbuch- und Fehlzeitenmanagement ist ohne Probleme möglich. Für Chatnachrichten, Vertretungsplan-, Stundenplanänderungen und Elternbriefe werden Push Nachrichten verschickt.
TfK Eltern
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TfK Eltern gives you access to information of your child's day. In the News Feed you can view relevant diaries, bulletins, activities, and current images and videos. It is also possible to reply to invitations, activities, conferences and much more. For a better overview of it all, access the App's own Calendar. In the Calendar you can easily access all relevant events sorted by day, week or month. Some more features are: - Gallery with images and videos of your child. - Communicate with your child's daycare centre. - Maintain your contact information. - Add profile images of yourself and your child. - Send playdate invitations to other families. - Register holiday and sick days. - Log in with touch/ face ID. - Check your child in and out of the institution.
Screenshots
Verdict
The clearest difference is iOS requirement: TfK Eltern at 13.0 against OSG App's 15.0. On price, update cadence, ads and in-app purchases 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.
OSG App ships an update every 3 months, TfK Eltern every 2 months. The most recent releases landed on September 16, 2026 and September 9, 2026 respectively.
| Parameter | OSG App | TfK Eltern |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (3 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 40 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | Jan Philipp Dahms | Terminal for Kids GmbH |
In-app purchases
OSG App
No in-app purchases
TfK Eltern
No in-app purchases
