Most apps build streaks.
Zackly builds vocabulary.

After months on other apps, most learners still can't recall words they've seen hundreds of times. Zackly works differently — a word only counts as learned once you've used it in reading, listening and speaking.

Download on theApp Store

🇩🇪 🇬🇧 🇪🇸 German · English · Spanish

📚 A1 – C2 CEFR

🗣 10,000+ words

🎯 TELC · Goethe · IELTS · DELE

🌍 22 native languages

🔒 On-device AI speaking

One loop. Every skill.

Listen, answer, read the transcript, tap any word you don't know to save it — then drill your saved words until they stick.

Listen & answer

Tap any word to save it

Your word library

Drill what you saved

Not another flashcard app

Four things Zackly does that gamified language apps structurally can't.

Honest mastery

A word isn't learned until you've proven it

Zackly requires repeated success across different game modes before a word counts as fully learned. Not tapping a card once and moving on. You'll know exactly what you've learned — and what you haven't.

Gap Map

See what's actually holding you back

Your CEFR coverage, mode by mode and level by level. No more guessing whether you're B1 or B2. No more XP points that mean nothing outside the app.

Exam formats

Built for the test you're actually taking

Listening passages and reading comprehension graded to your exact CEFR level, mirroring TELC, Goethe, IELTS and DELE task structures — including multi-part listening. Not cartoon animations.

Private speaking

Practise out loud without being heard

Every word gets tested by speaking, not just tapping — and your recordings never leave your phone. Free conversation practice with an on-device AI partner, on iPhone 15 Pro and newer with Apple Intelligence.

Consistency

A goal you finish. Every week.

Most apps give you an endless daily loop. Zackly gives you a finish line — a Focus Set of words you pick, fill, and graduate. Your streak only moves when you hit your actual goal, not just when you open the app.

Focus Sets — a finite weekly target you actually complete
A streak that counts real practice, not taps
Home screen & lock screen widgets keep progress in view

22 native languages

Learn from your language

Full interface and notifications in 22 languages — so nothing gets lost in translation on the way to B2.

EnglishDeutschEspañolFrançaisItalianoPortuguêsNederlandsPolskiRomânăTürkçeBahasa IndonesiaTiếng ViệtΕλληνικάРусскийУкраїнськаالعربيةفارسیहिन्दीไทย中文日本語한국어

Taking TELC, Goethe or IELTS?

These exams test listening passages, reading comprehension and real speaking. Most apps teach you to match pictures to words. Zackly's Hören and Lesen modes mirror the actual task formats, graded to your level — so exam day isn't the first time you see the format.