A1 → C1
Every English level, and what it actually means
51 levels and 395 grammar points, mapped onto the six-band scale IELTS, TOEFL and the Cambridge exams are graded against. Not a marketing summary - the actual curriculum, unit by unit.
Beginner
8 levels · 59 grammar points
Your first real sentences in English - to be, the present simple, and the handful of words everything else is built on.
≈500 words No adult Cambridge exam at this level (A1 Movers is for young learners)
Elementary
11 levels · 85 grammar points
The past arrives. You stop describing the present and start telling people what happened.
≈1,000 words Cambridge A2 Key (KET)
Intermediate
12 levels · 98 grammar points
The threshold. You can hold an opinion, tell a story that lasts more than one sentence, and be understood.
≈2,000 words Cambridge B1 Preliminary (PET) · IELTS 4.0–5.0
Upper-Intermediate
12 levels · 81 grammar points
Argument, register and the whole conditional system. The level that opens English-speaking universities.
≈4,000 words Cambridge B2 First (FCE) · IELTS 5.5–6.5 · TOEFL iBT 72–94
Advanced
8 levels · 72 grammar points
Implication, irony and style. Literature and the press at natural speed, without a dictionary open.
≈8,000+ words Cambridge C1 Advanced (CAE) · IELTS 7.0–8.0 · TOEFL iBT 95–120
Mastery
Outside the Leo curriculum
The top of the scale. What C2 actually means, what C2 Proficiency tests, and why almost nobody needs it.
≈12,000+ words C2 Proficiency
The app
Leo English teaches these levels by reading
The roadmap on this page is not a chart we drew for the article - it is the syllabus the app is built on. Leo takes you from your first sentence to reading the press without a dictionary, one story at a time.
Stories, not drills
Every level is taught through illustrated stories written at that level - short at A1, full pages of natural prose by C1. You learn English the way you learned to read: by reading something you want to finish.
Tap any word
Translation, pronunciation and the grammar behind the form, on the word itself. No dictionary in another tab, no losing the thread of the sentence to look something up.
A real curriculum underneath
51 levels and 395 grammar points from A1 to C1, in the order they build on each other. The stories are ordered by that curriculum, so a form is always introduced before it is used again.
Be told the day it lands
The app is in development. One e-mail, on launch day - that is the whole deal.
One e-mail, on launch day. No newsletter, no drip campaign.
The levels side by side
| Level | Vocabulary | Study hours | Exam |
|---|---|---|---|
| A1 - Beginner | ≈500 words | 90–100 guided hours | No adult Cambridge exam at this level (A1 Movers is for young learners) |
| A2 - Elementary | ≈1,000 words | 180–200 guided hours | Cambridge A2 Key (KET) |
| B1 - Intermediate | ≈2,000 words | 350–400 guided hours | Cambridge B1 Preliminary (PET) · IELTS 4.0–5.0 |
| B2 - Upper-Intermediate | ≈4,000 words | 500–600 guided hours | Cambridge B2 First (FCE) · IELTS 5.5–6.5 · TOEFL iBT 72–94 |
| C1 - Advanced | ≈8,000+ words | 700–800 guided hours | Cambridge C1 Advanced (CAE) · IELTS 7.0–8.0 · TOEFL iBT 95–120 |
| C2 - Mastery | ≈12,000+ words | 1,000–1,200+ | C2 Proficiency · IELTS 8.5+ |
C2 is on the scale but outside the Leo curriculum - the C2 page explains why.
Study hours are cumulative from zero and reflect the guided-hour ranges Cambridge and English language schools commonly publish. They are a classroom average, not a guarantee.
English levels - frequently asked questions
What are the English CEFR levels?
Which English level do I need for a visa or for citizenship?
How long does it take to go from A1 to B2 in English?
Which English level should I start at?
Is CEFR the same as IELTS?
What is the difference between B1 and B2 English?
Read your way up this scale
51 levels, 395 grammar points, A1 to C1 - taught through stories.
One e-mail, on launch day. No newsletter, no drip campaign.