# LUIS CAMPUS vs 900s

The clearest difference is in-app purchases: LUIS CAMPUS at none against 900s's 4. LUIS CAMPUS also leads on device support (3 vs 1). 900s's advantage is update cadence (every 2 weeks vs every 8 months). On price, ads and iOS requirement there is nothing between them.

Both are free to download. 900s sells 4 in-app purchases, starting at $0.99 per month. LUIS CAMPUS asks for nothing beyond the download.

LUIS CAMPUS ships an update every 8 months, 900s every 2 weeks. Both last shipped on November 12, 2026.

## The numbers

| Metric | LUIS CAMPUS | 900s |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 117 MB | 77 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Lecturio GmbH](https://appshunter.io/developer/667474928) | [Unit U+2467 GmbH](https://appshunter.io/developer/1781273662) |

## What reviewers say

### LUIS CAMPUS

[App page](https://appshunter.io/ios/app/luis-campus/id6746327664)

**Features:** Vision Pro support

**In-app purchases:** none


### 900s

[App page](https://appshunter.io/ios/app/900s/id6746439317)

Learn complex ideas through engaging, podcast-style audio episodes. Interact with AI to ask questions and explore topics in real-time. Fits learning into short daily sessions.

**Highlights:** Podcast-style learning episodes, AI-powered interactive Q&A, Curated content across genres, Personalized library and progress tracking, Background audio playback, Offline downloads (Premium)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic – monatlich | $0.99 | per month |
| Plus – monatlich | $2.99 | per month |
| BILDplus + 900s | $6.99 | per month |
| Ultimate | $8.99 | per month |


## Frequently asked questions

### Is LUIS CAMPUS free?

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

### Is 900s free?

900s is free to download, with in-app purchases available.

### Do LUIS CAMPUS or 900s have ads?

Neither LUIS CAMPUS nor 900s shows ads.

### Which is updated more often, LUIS CAMPUS or 900s?

LUIS CAMPUS ships an update every 8 months, and 900s every 2 weeks. Most recently, LUIS CAMPUS was updated on November 12, 2026 and 900s on November 12, 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.*