# OSG App vs StudiwerkMainz

The clearest difference is rating: StudiwerkMainz at 5.0 against OSG App's 3.3. StudiwerkMainz also leads on update cadence (fortnightly vs every 3 months). OSG App's advantage is review sentiment (25% vs 0%). On price, ratings volume, ads and in-app purchases there is nothing between them.

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

StudiwerkMainz holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively. Written reviews complicate that: 25% of OSG App's written reviews are positive against 0% of StudiwerkMainz's, so the app with the better star average is not the one people write more warmly about.

OSG App ships an update every 3 months, StudiwerkMainz fortnightly. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | OSG App | StudiwerkMainz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/osg-app/id792552698/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/studiwerkmainz/id6746539613/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 40 MB | 61 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Philipp Dahms](https://appshunter.io/developer/1474942026) | [IntraKey technologies AG](https://appshunter.io/developer/899101212) |

## What reviewers say

### OSG App

[App page](https://appshunter.io/ios/app/osg-app/id792552698)

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.

**Highlights:** Personalized class and substitute schedules, Digital class register, Absence management, Push notifications for messages, Quick portal connection

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

**In-app purchases:** none


### StudiwerkMainz

[App page](https://appshunter.io/ios/app/studiwerkmainz/id6746539613)

Manage your digital student ID and wallet for seamless financial transactions. Transfer funds, track expenses, and add money securely with multiple payment options. Designed for students to manage their finances effortlessly.

**Highlights:** Digital ID and wallet management, Secure access with SECANDA ID, Fast and secure payments with SECANDA PAY, Add funds via Visa, Mastercard, SEPA, Real-time money transfers, Expense tracking, Control children's funds

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

**In-app purchases:** none


## Frequently asked questions

### Is OSG App free?

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

### Is StudiwerkMainz free?

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

### Which has better reviews, OSG App or StudiwerkMainz?

StudiwerkMainz is rated higher. OSG App averages 3.3 out of 5 from 3 ratings, while StudiwerkMainz averages 5.0 from 2 ratings.

### Do OSG App or StudiwerkMainz have ads?

Neither OSG App nor StudiwerkMainz shows ads.

### Which is updated more often, OSG App or StudiwerkMainz?

OSG App ships an update every 3 months, and StudiwerkMainz fortnightly. Most recently, OSG App was updated on September 16, 2026 and StudiwerkMainz on September 22, 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.*