# IGA OPTIC App vs Kienzle Academy

The clearest difference is in-app purchases: IGA OPTIC App at none against Kienzle Academy's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Kienzle Academy sells 10 one-off in-app purchases. IGA OPTIC App asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | IGA OPTIC App | Kienzle Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 41 MB | 56 MB |
| Requires iOS | 13.2 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [IGA-Interessengemeinschaft Augenoptik eG](https://appshunter.io/developer/1505739600) | [Michael Kienzle](https://appshunter.io/developer/1566872092) |

## What reviewers say

### IGA OPTIC App

[App page](https://appshunter.io/ios/app/iga-optic-app/id1505739601)

**Features:** macOS Compatibility

**In-app purchases:** none


### Kienzle Academy

[App page](https://appshunter.io/ios/app/kienzle-academy/id1566872090)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Schnupperkurs Hörakustik | Free | one-time |
| Erfolgreiche Expertenrhetorik | Free | one-time |
| Videokurs: Kunden begeistern | $0.99 | one-time |
| Kienzle Hörakustik Academy | $0.99 | one-time |
| Erfolgreiche Experten-Rhetorik | $0.99 | one-time |
| Kienzle Experten Academy | $0.99 | one-time |
| Videokurs: Digital begeistern | $84.99 | one-time |
| Auf Messen sich messen | $179.99 | one-time |
| Expertenrhetorik 2.0 | $349.99 | one-time |
| Videokurs: Hörakustik 2.0 | $349.99 | one-time |


## Frequently asked questions

### Is IGA OPTIC App free?

IGA OPTIC App is free to download, with no in-app purchases.

### Is Kienzle Academy free?

Kienzle Academy is free to download, with in-app purchases available.

### Do IGA OPTIC App or Kienzle Academy have ads?

Neither IGA OPTIC App nor Kienzle Academy shows ads.

### Which is updated more often, IGA OPTIC App or Kienzle Academy?

IGA OPTIC App ships an update every 2 months, and Kienzle Academy every 2 months. Most recently, IGA OPTIC App was updated on November 3, 2026 and Kienzle Academy on November 3, 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.*