What are some alternatives?
When comparing Kindle Paperwhite 7th gen and RegexBuddy, you can also consider the following products
Kobo Books - Kobo Books is a best in the class eBooks and eReadering apps for many reasons.
RegExr - RegExr.com is an online tool to learn, build, and test Regular Expressions.
WHSmith - Buy Books at WHSmith. We have a great range of Books from top brands. Delivery is free on all UK orders over £20.
Expresso - The award-winning Expresso editor is equally suitable as a teaching tool for the beginning user of regular expressions or as a full-featured development environment for the experienced programmer with an extensive knowledge of regular expressions.
eBooks.com - eBooks.com is a leading retailer of ebooks, with a vast range of ebooks from academic, popular and professional publishers.