# Seifesieden vs 900s

The clearest difference is in-app purchases: Seifesieden at none against 900s's 4. Seifesieden also leads on device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price and ads there is nothing between them.

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

## The numbers

| Metric | Seifesieden | 900s |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 75.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 10 days |
| Monetization | — | Freemium |
| Size | 15 MB | 77 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jessica Maas](https://appshunter.io/developer/1602366075) | [Unit U+2467 GmbH](https://appshunter.io/developer/1781273662) |

## What reviewers say

### Seifesieden

[App page](https://appshunter.io/ios/app/seifesieden/id6740488749)

**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, 15-minute daily sessions.

**Highlights:** Podcast-style learning episodes, 15-minute daily learning sessions, AI-powered interactive Q&A, Curated content on various topics, Personalized library and progress tracking, Offline downloads with 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 Seifesieden free?

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

### Is 900s free?

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

### Do Seifesieden or 900s have ads?

Neither Seifesieden nor 900s shows ads.

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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.*