# Substitutes vs Schloss

The clearest difference is review sentiment: Schloss at 100% against Substitutes's 71%. Schloss also leads on iOS requirement (15.0 vs 18). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Substitutes | Schloss |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 40 MB |
| Requires iOS | 18 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jan Wittler](https://appshunter.io/developer/805834216) | [Jan Philipp Dahms](https://appshunter.io/developer/1474942026) |

## What reviewers say

### Substitutes

[App page](https://appshunter.io/ios/app/substitutes/id805834213)

Access your school's substitution schedule directly on your iPhone or iPad. Stay updated automatically with timetable changes, even offline. You can also input your personal schedule for a consolidated view of all your classes and substitutions.

**Highlights:** Real-time substitution plan updates, Offline access to schedule, Personal timetable input, Automatic course synchronization, Supports schools across Germany

**In-app purchases:** none


### Schloss

[App page](https://appshunter.io/ios/app/schloss-app/id1386253497)

Access your school's portal for personalized class and substitute schedules. Receive instant push notifications for schedule changes, messages, and important announcements.

**Highlights:** Personalized schedules, Substitute plan updates, Push notifications, School portal integration, Individualized access

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

**In-app purchases:** none


## Frequently asked questions

### Is Substitutes free?

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

### Is Schloss free?

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

### Do Substitutes or Schloss have ads?

Neither Substitutes nor Schloss shows ads.

### Which is updated more often, Substitutes or Schloss?

Substitutes ships an update every 3 months, and Schloss every 3 months. Most recently, Substitutes was updated on October 7, 2026 and Schloss on October 5, 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.*