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...about my products   

Help and Documentation

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Support

The preferred way to contact support is via the support function built into the apps, which can usually be found in the main menu under Help. This gives me additional information about the version of the application I am using. Alternatively there are the following support forms on the websites:

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Errors and feature requests can also be directly managed and evaluated for the following apps:

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Newsletter

Stay up to date with the email newsletter:

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Blog

In depth articles about app development backgrounds: Entwicklung:

Holtwick.de
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Social Media

Twitter
@holtwick - Principal account
@apperdeck - Slightly more informal news
@receipts-app - News about Receipts

Facebook
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Youtube
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Holtwick - all others

Reviews

Did you like the app or the product? That is great! Here are ways to share the joy.

AppStores
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ProductHunt
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AlternativeTo
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MacUpdate
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API

Some apps offer programming interfaces:

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Affiliate

Earn a 20% commission on sales you generate:

Paddle Affiliate

I develop and sell apps, but I am also involved in the open source area. I would like to provide more Open Source, but then the income is missing. For this reason it is also possible to support my work.

Sponsoring via Github
Direkt via PayPal

Of course, other ways are also possible or contract work against invoice. Please contact me via contact@holtwick.de.