# HdBA App vs Study System

The clearest difference is in-app purchases: HdBA App at none against Study System's 2. Study System's advantage is update cadence (every 2 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Study System sells 2 one-off in-app purchases. HdBA App asks for nothing beyond the download.

HdBA App ships an update fortnightly, Study System every 2 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | HdBA App | Study System |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Ad-supported | — |
| Size | 110 MB | 51 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [UniNow GmbH](https://appshunter.io/developer/1099302123) | [BILAL MALIK RAGHE](https://appshunter.io/developer/1885118110) |

## What reviewers say

### HdBA App

[App page](https://appshunter.io/ios/app/hdba-app/id1611531303)

This app supports students with daily university life, offering tools for managing schedules, tracking grades, and accessing learning materials. It provides quick access to library resources and canteen menus, streamlining campus activities.

**Highlights:** Timetable management, Grade point average calculation, Push notifications for new grades, Access to e-learning materials (ILIAS), Library access, Canteen menu information

**Features:** Apple Wallet

**In-app purchases:** none


### Study System

[App page](https://appshunter.io/ios/app/study-system/id6768014324)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study Pro Monthly | $5.99 | one-time |
| Premium monthly | $29.99 | one-time |


## Frequently asked questions

### Is HdBA App free?

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

### Is Study System free?

Study System is free to download, with in-app purchases available.

### Do HdBA App or Study System have ads?

Neither HdBA App nor Study System shows ads.

### Which is updated more often, HdBA App or Study System?

HdBA App ships an update fortnightly, and Study System every 2 days. Most recently, HdBA App was updated on October 13, 2026 and Study System on October 3, 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.*