# Herr Professor vs ISMIND 2026

The clearest difference is update cadence: ISMIND 2026 at every 5 days against Herr Professor's every 3 months. ISMIND 2026 also leads on iOS requirement (13.0 vs 15.6). 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.

Herr Professor ships an update every 3 months, ISMIND 2026 every 5 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Herr Professor | ISMIND 2026 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 51 MB | 57 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Macias Martin Manuel](https://appshunter.io/developer/1618429607) | [TUNCEL TURIZM ITHALAT IHRACAT VE TICARET LIMITED SIRKETI](https://appshunter.io/developer/1536395336) |

## What reviewers say

### Herr Professor

[App page](https://appshunter.io/ios/app/herr-professor/id1618429605)

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

**In-app purchases:** none


### ISMIND 2026

[App page](https://appshunter.io/ios/app/ismind-2026/id6777050007)

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

**In-app purchases:** none


## Frequently asked questions

### Is Herr Professor free?

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

### Is ISMIND 2026 free?

ISMIND 2026 is free to download, with no in-app purchases.

### Do Herr Professor or ISMIND 2026 have ads?

Neither Herr Professor nor ISMIND 2026 shows ads.

### Which is updated more often, Herr Professor or ISMIND 2026?

Herr Professor ships an update every 3 months, and ISMIND 2026 every 5 days. Most recently, Herr Professor was updated on November 7, 2026 and ISMIND 2026 on October 31, 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.*