Angielski Biznesowy is a free mobile application that offers a Business English course for learners. The app, developed by Tweeba, provides over 2,200 words and business phrases that are useful for working in English, business trips, and holidays abroad. It also offers English grammar, tests, a dictionary, tables, and downloads of the most important Business English topics. The expressions are sorted into lessons and tests that allow learners to learn successively. The app also has an option to pre-conceal the meaning of English words in Polish that helps in memorizing. Additionally, the application can be used for mobile cards and as a handy textbook for learning a business language. The program works online and offline, and English voice data files are best installed with the use of wifi. If you have any suggestions on how to improve the application, the developer encourages you to send them a message on their email.