Ask. Get the answer. Keep working.

Your AI is right where you are working. Select text or a file and press Alt+1. The context comes along.

Start free with 500 credits

Zack KI runs on Windows. Open this page on your PC or email yourself the link.

Customer email
Hi Ms Berger,
many thanks for getting back to us so quickly.
please send us pls a new offer until friday, we cant find the old one anymore.
Kind regards
J. Klein, Purchasing
Alt1
Zack KI

Just ask. Attach a file or a screenshot when context helps.

Selection
please send us pls a new offer until friday, we cant find the old one anymore.
Improve

Here is a cleaner version of your text:

Text
Please send us the quote again by Friday. We can no longer find our copy.
Selection
please send us pls a new offer until friday, we cant find the old one anymore.

Why Zack KI

The AI comes to you, not the other way round.

A quick question otherwise takes nine clicks.

Without Zack KI

9 steps
  1. Select text
  2. Copy
  3. Open the browser
  4. Find the AI page
  5. Paste
  6. Ask
  7. Copy the answer
  8. Switch back
  9. Paste

With Zack KI

4 steps
  1. Select text
  2. Press Alt+1
  3. Ask
  4. Insert the answer

Context included

Whatever is on your screen comes along automatically.

Three ways, one shortcut.

Files from Explorer

Select one or more files in Explorer and press Alt+1. PDF, Word, Excel, plain text: every selected file is attached.

That way you can check a quote against a price list without opening either file yourself.

Customer email
Hi Ms Berger,
many thanks for getting back to us so quickly.
please send us pls a new offer until friday, we cant find the old one anymore.
Kind regards
J. Klein, Purchasing
Alt1
Zack KI

Just ask. Attach a file or a screenshot when context helps.

Selection
please send us pls a new offer until friday, we cant find the old one anymore.
Improve

Here is a cleaner version of your text:

Text
Please send us the quote again by Friday. We can no longer find our copy.
Selection
please send us pls a new offer until friday, we cant find the old one anymore.
Explorer
This PCDocumentsQuotes
NameTypeSize
Quote_Meyer_2026.pdfPDF2.4 MB
Pricelist.xlsxXLSX1.1 MB
Notes.docxDOCX38 KB
Questions.txtTXT2 KB
Alt1
Zack KI

Just ask. Attach a file or a screenshot when context helps.

Quote_Meyer_2026.pdf
2.4 MB
Pricelist.xlsx
1.1 MB
Explain
  • Meyer quote: €2,400 net, payment within 14 days.
  • Price list: €2,150 net as the standard price.
  • That is €250 above the list, roughly a 12% markup.
Quote_Meyer_2026.pdf
2.4 MB
Pricelist.xlsx
1.1 MB
Alt1
Zack KI

Just ask. Attach a file or a screenshot when context helps.

Screen snippet
What does this error code mean?
  • The error means “file not found”.
  • Restart the service or check the file path.
Screen snippet

Fast or thorough?

Two buttons. That's it.

You only choose how much time the answer may take.

Quick

Answers instantly and is enough for the vast majority of questions.

Deep

Thinks longer and gets noticeably more accurate on tricky tasks.

Pricing

Three plans. No tiers to decode.

Credits are your balance for asking questions. Start free and switch only when you need more.

Free

€0forever

 

~ 15 questions per week
  • 100 credits per week
  • 500 starter credits
  • Quick mode
Start for free

Pro

€7.99 / month

incl. VAT

~ 750 questions per week
  • 12,000 credits per week
  • 1,000 new one-time credits per month
  • Quick mode
  • Web search
  • Deep mode
Choose Pro

14-day right of withdrawal

Need more sometimes?

Top up once, without a subscription and without changing plan.

Questions

Frequently asked questions

How does Zack KI work with the programs I already use?

You select text or pick files in File Explorer, then press your shortcut — Alt+1 out of the box. With nothing selected, the screen capture tool opens instead. Zack KI picks up that content from almost any program, and one button writes the answer back where your selection was.

Why use Zack KI when I already have ChatGPT in my browser?

Zack KI is faster. In a browser you copy text out of your document, switch windows, paste, copy the answer and switch back. Zack KI sits on top of the program you are already working in.

What can I use on the Zack Free plan?

You get 500 credits to start with and 100 more each week. That covers Quick mode. Deep and web search are not part of it — those need Zack Basic or Zack Pro.

What is the difference between Quick and Deep?

Quick answers fast and suits short questions, rewrites, summaries and straightforward research on the web. Deep takes more time when accuracy and quality matter, and uses more credits in return.

What happens to the text I send?

Your chats stay stored on your PC, and our servers in Germany do not store your request. There is more on this in the privacy policy.

Will Zack KI run on my computer?

Zack KI runs on Windows 10 and Windows 11. There is no version for macOS or Linux yet.

See all questions

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One heads-up

Windows is about to show this warning

It appears for every new program that only a few people have installed and says nothing about the safety of the file. Here is how to get past it:

  1. 1 Click More info.
  2. 2 Click Run anyway.
Windows Defender SmartScreen warning: “Windows protected your PC” with the options “Don’t run” and “More info”. The same warning after “More info”: app Zack-KI-Setup.exe, unknown publisher, and the “Run anyway” button below.