---
title: "Documentation"
description: "How Repca works — the review algorithm, vocabulary sources, the principles behind decks and the AI assistant."
canonical_url: "https://repca.xyz/en/docs"
last_updated: "2026-09-29"
---

Repca is an app for learning foreign languages through flashcards. You create a deck, fill it with front-and-back cards, and review them when review is actually needed — not on one schedule shared by every case.

The back of a card doesn't have to be a translation. It can be a definition, a synonym, an answer to a question or a usage example.

## Sitemap

See the full [sitemap](/sitemap.md) for all pages.