Software · Education & science

Sharks Empire: English

Sharks Empire: English is a flashcard program, available on Linux.

Completely free
Linux
Open source

At a glance

All of Sharks Empire: English is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-3.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

Open source code
Commercial use allowed

About

Note: Only supports russian translations There are three modes: Overview, Practice, and Exam. While the overview straight up shows the translation, other modes provide it after pressing a corresponding button. In the end, all mistakes are shown to provide you with a feature to reflect on your answers. To gauge the progress of learning each word, they have points assigned to them. When you are ready, complete the exam—a more strict area which punishes mistakes more. The exam's goal is to make as few mistakes as possible, but in order to not be utterly strict, it allows one mistake to pass. The features of an app are as follows: One part of speech per group Groups have subgroups 10 words per subgroup Self-evaluation approach No multiple choice guessing Context-sensitive translations Supported languages: Russian

Description from Flathub — AppStream (Flathub)

Sources and checks

Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) — 9 November 2026
Last technical check: 9 November 2026
Description from Flathub — AppStream (Flathub)

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