Understood In app icon

Language courses that actually teach.

Understood In is a family of apps — one per language — built on one idea: a course you can finish and then actually use. Real grammar explanations, speaking practice that listens to you, typed answers instead of tile-matching, and spaced-repetition review. Every lesson free, fully offline, explained in your own language.

Understood In Spanish is out now on the App Store and Google Play. French, Chinese and Italian are next.

Understood In Spanish: the Learn tab course map — an A2 unit with completed lessons, a 23-day streak, 2,070 XP and a Daily Workout card
The apps

One app per language. Same method in every one.

Each Understood In app is its own complete course, A1 to C2, free. Spanish is on the stores now; each other badge turns on the day that app is approved.

FrançaisIn development

Understood In French

French you can actually say out loud — liaison, gender and the tenses explained, then practised with your voice and your keyboard.

App Store — planned Google Play — planned
中文In the queue

Understood In Chinese

Mandarin from your first tones to real conversation — the same grammar-first lessons, speaking practice and Smart Review, built for characters and pinyin.

App Store — planned Google Play — planned
EnglishIn the queue

Understood In English

English explained in your own language — for the 32 languages our courses already speak.

App Store — planned Google Play — planned
ItalianoIn the queue

Understood In Italian

Italian with the grammar in the open — articles, the passato prossimo, the subjunctive — and stories and conversations to use it in.

App Store — planned Google Play — planned
日本語In the queue

Understood In Japanese

Japanese with kana, kanji and politeness levels introduced in the right order — and used in stories and conversations.

App Store — planned Google Play — planned
한국어In the queue

Understood In Korean

Korean from Hangul to conversation, with politeness levels and particles explained instead of guessed.

App Store — planned Google Play — planned
PortuguêsIn the queue

Understood In Portuguese

Portuguese for real conversations, with the differences between Brazil and Portugal made clear instead of hidden.

App Store — planned Google Play — planned
How every course works

A course that teaches, not a game that nags

Most apps teach you to tap matching tiles. Understood In teaches you the language — the way a good course does, with the parts that make it stick.

Grammar, explained

Every lesson starts with a real explanation — the why, not just the what — with examples you can play out loud.

Speak from day one

Say each sentence out loud; speech recognition on your phone checks you and tells you what it heard. Skip any time.

Type it, don't tap it

Typed answers, word-bank building, listening dictation, fill-in-the-blank, matching and dialogues.

Smart Review

Spaced repetition resurfaces every word you have learned right before you would forget it, plus a Daily Workout of due words and your misses.

Stories & conversations

Graded readers with tap-a-word meanings and audio, and branching conversations where every reply is a choice with feedback.

Taught in your language

Lessons are explained in the language you choose — 33 languages today.

100% offline, no account

The whole course ships inside the app. Your progress stays on your phone; there is nothing to sign up for.

No hearts, no paywalled lessons

Mistakes come back at the end of the lesson until you get them. You are never locked out for trying.

Pricing — every app

Free means free

The free version shows ads between lessons — never inside one. Pro removes the ads. That is the only difference, in every Understood In app.

Free

$0

The whole course, forever

  • Every lesson, A1 to C2
  • Speaking, typing, listening, stories, conversations
  • Smart Review, Daily Workout, flashcards, quizzes
  • 33 interface languages, fully offline
  • Ads between lessons — never inside one

Pro Monthly

$0.99/month

Try Pro on for size

  • Everything in Free
  • Every ad removed
  • Cancel anytime

Subscriptions are billed by Apple or Google per app, auto-renew until cancelled, and can be managed in your App Store or Google Play account. We never see your payment details.

Honesty note: the courses are written by AI and reviewed for accuracy. Lessons are explained in the language you choose; translations other than English are machine-generated. The language you learn is the same in every interface language.

First up: Spanish

Understood In Spanish is out now on the App Store and Google Play. Every lesson free; Pro only removes the ads.

Download on the App Store Get it on Google Play

Free download. No account needed.

Explore the Spanish course