Does Kindle app cost money?

Related questions

1. Is Amazon Kindle free to use?
2. Why are my Kindle books not downloading to my iPad?
3. Do you have to pay for Kindle app?
4. Can you print out a Kindle book?
5. Is there a Kindle App for iPad?
6. What is Kindle app for PC?
7. Can I read Kindle book on my iPad?
8. Can you use the Kindle app without a Kindle?
9. Can I download Kindle books to my tablet?
10. How can I read books for free on my iPad?

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