# Otto Schmidt Seminare vs DStR

The clearest difference is update cadence: DStR at every 2 months against Otto Schmidt Seminare's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Otto Schmidt Seminare ships an update every 8 months, DStR every 2 months. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Otto Schmidt Seminare | DStR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 2 months** |
| Size | 16 MB | 50 MB |
| Requires iOS | 14.0 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Verlag Dr. Otto Schmidt](https://appshunter.io/developer/368763384) | [Verlag C.H.BECK oHG](https://appshunter.io/developer/370897430) |

## What reviewers say

### Otto Schmidt Seminare

[App page](https://appshunter.io/ios/app/otto-schmidt-seminare/id1356061564)

**In-app purchases:** none


### DStR

[App page](https://appshunter.io/ios/app/dstr/id6478762869)

**In-app purchases:** none


## Frequently asked questions

### Is Otto Schmidt Seminare free?

Otto Schmidt Seminare is free to download, with no in-app purchases.

### Is DStR free?

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

### Do Otto Schmidt Seminare or DStR have ads?

Neither Otto Schmidt Seminare nor DStR shows ads.

### Which is updated more often, Otto Schmidt Seminare or DStR?

Otto Schmidt Seminare ships an update every 8 months, and DStR every 2 months. Most recently, Otto Schmidt Seminare was updated on September 18, 2026 and DStR on September 14, 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.*