Popup Translator is a helpful app for those who frequently browse foreign language websites and struggle with translations. Developed by Tossy, this free Android app allows users to select text and translate it without having to switch apps or screens. The translation result is displayed in a pop-up window on the screen, making it easy to check while continuing to work.

One of the app's standout features is its offline translation capability, so users do not have to worry about internet connectivity or data usage. Additionally, Popup Translator allows users to customize the pop-up window's appearance, including the window's icon, text, background, border, and more.

Popup Translator is also useful for language learners, as it has a history view that allows users to review past translations and discover new words or phrases. The app supports many languages, making it accessible to a wide range of users.

Overall, Popup Translator is a convenient and customizable translation app that is easy to use and perfect for those who need quick translations while multitasking.