PolyglotGym

Learn several languages without losing the ones you have

Most apps treat your second language as a separate account. Everything here is built the other way round: one vocabulary spine shared across every language you study, so a word you already know in Spanish is a head start in Portuguese rather than a fresh card.

See your languages side by side

Free, and no card required.

The same meaning, across your languages

Every word belongs to a concept, and every concept carries its word in each language. That is what makes it possible to ask which languages you know a meaning in and which you do not - and to answer with the actual word to learn, not a blank.

EspañolPortuguêsItaliano
el aguaa águal'acqua
el pano pãoil pane
la casaa casala casa
el amigoo amigol'amico
la lecheo leiteil latte
la nochea noitela notte
la madrea mãela madre
el caféo caféil caffè

What that makes possible

Gaps you can act on

Pick your languages and see the meanings you know in one but not the others, each with the word you are missing. Languages with no word for a concept are left out rather than shown as homework you cannot do.

Reviews that keep close languages apart

Czech and Polish, Spanish and Portuguese, Russian and Ukrainian: meeting the same meaning in both on the same day trains confusion, not recall. Sibling languages are deliberately spaced apart, and no two cards for one concept sit back to back in a session.

Study one language through another

Prompt yourself in Spanish while learning Italian, or in Russian while learning Czech. Your stronger language becomes the scaffolding instead of an interruption, and your first language never has to appear.

One habit, every language

A single streak and one daily review that interleaves everything you study, so keeping a language alive costs a few minutes rather than another app.

Common pairs, compared

FAQ

Is it a bad idea to learn two languages at once?
It is harder when the two are close and you are a beginner in both - meeting the same meaning in Czech and Polish in one sitting trains you to confuse them. It is much safer when one language is already established, or when the two are far apart. Reviews here space close languages apart for that reason, but the honest advice is to get one language moving before adding the next.
How many languages can I study for free?
As many as you like. Language count is not a paid feature and will not become one - an extra language costs us almost nothing to serve, and the cross-language features get more useful the more you add.
Can I learn a language without using English?
Yes. Pick which language your prompts appear in, so you can study Italian through Spanish or Czech through Russian with no English anywhere in the session.
Will it tell me which of my languages is falling behind?
Each language shows what you have actually done in it, and the shared target is set by your weakest language rather than by fluency, so it stays something every language can reach.
See your languages side by side