Regretfully, the KF Dictionary is no longer available on Apple Mac and IOS platforms.
One of the largest American English <–> Polish dictionaries was created by the Kosciuszko Foundation, founded in 1925 to promote closer ties between Poland and the US through educational, scientific and cultural exchanges.
It is a new, digital version of the revised New Kosciuszko Foundation English-Polish, Polish-English Dictionary, published in two volumes in 2003.
As the result of long-time research and study, this dictionary includes:
109,000 idioms and phrases
a simplified guide to grammar and pronunciation in both languages
everyday expressions, technical terminology, literary language, and archaic vocabulary
tips on pronunciations for both languages
many SEARCH TOOLS: full text, search-as-you-type, search idiomatic expressions
LEARNING TOOLS: memory panel to save your favorite words, your recent list helps you review looked-up words
no Internet connection required after downloading the App
Every single part of this dictionary is thought through and designed to ease your learning process. All proceeds from the sale of the KF Dictionary will be used to further the Kosciuszko Foundation's educational and cultural programs and activities.
Answer: It is for one device only. You have to purchase another license.