The Language Test finds your vocabulary level from A1 to C2. It shows you one word at a time and asks a single question: do you know it? It starts in the middle, moves up or down with your answers, and stops after twenty words at most. Your level is saved for that language and decides which words the Word Map suggests to you. It is free.
Each language you learn has its own level, so take the test once per language.
It starts at B1 and shows four words from that level. Know at least half and it moves up a level; know fewer and it moves down. That way it reaches your level quickly, without making you answer a hundred questions.
Your level tells the Word Map which words to suggest: the ones just above what you already know, where learning pays off most. You can change the level by hand at any time.
English, Spanish, German, French, Italian, Portuguese, Czech and Indonesian. Czech and Portuguese currently go up to B2.
Yes. The test is free on every plan, and you can take it as often as you like.
About a minute. It asks twenty words at most, one question each.
They are the CEFR levels, from A1 for beginners to C2 for near-native. Each level has its own set of common words.
Yes. Choose "Set level manually" on the web, or "Change level manually" in the phone app, and pick the level yourself.