Comparison

edio.ai vs Ellii (ESL Library): which one fits your language school?

Ellii, formerly ESL Library, is one of the biggest libraries of ready-made English lessons, with digital homework for students. edio.ai is an AI-powered LMS for teaching languages live and running a school. Here is where each one fits.

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The short answer

Pick Ellii if you teach English only and want a huge library of printable lessons, flashcards and videos, with digital homework. Pick edio if you teach live online or run a language school: students work in the same lesson with you, AI builds lessons from your own topics and files, and lesson balances, attendance and teachers sit in one account. edio also works for languages other than English.

  • ElliiBest forEnglish classrooms that print or project their materials
  • edioBest forLive online teaching and language schools, in any language

Quick verdict

Ellii is a large English lesson library with digital tasks, homework and AI help with scoring. edio is a platform for live interactive lessons in many languages, with an AI lesson generator and tools to run a school.

Choose Ellii

  • You teach English only and want thousands of ready-made lessons and flashcards
  • You teach in a classroom and print or project your materials
  • You want AI help to score writing and speaking homework
  • Your program buys licences per teacher for a large library

Choose edio

  • You teach online or in small groups and want the lesson itself to be interactive
  • You want AI to build a whole lesson from your own topic, PDF or image
  • You teach more than one language, or Polish as well as English
  • You run a school and need lesson balances, analytics and several teachers in one account

Feature comparison

An honest side-by-side breakdown. Where Ellii is stronger, we say so directly.

Feature comparison of edio and Ellii
FeatureedioElliiBetter fit
Language teaching
Ready-made lessons621 interactive lessons: English A1–C1, Polish A1–B2Thousands of English lessons, flashcards and videosEllii
Live lesson spaceTeacher and student work on the same lesson in real time. Video runs in Zoom or Meet alongsideThe teacher presents tasks on a shared screen with the Digital Task Playeredio
Interactive exercises32 exercise types that check themselves: gap fill, drag-and-drop, matching, unjumble and moreDigital tasks such as multiple choice, matching, type in the blanks, image match and open questionsTie
AILesson generator builds a whole interactive lesson from a topic, PDF or imageEllii Bot helps score writing and speaking answersedio
Languages18 languages supportedEnglish onlyedio
Students and homework
HomeworkAssign homework in your classes. Exercises check themselves and you see every answerAssign digital tasks as homework, with results, feedback and the Grade FeedTie
ProgressHomework status by teacher and by student: submitted, checked, pending and needs revisionCompletion and time-on-task reportsTie
Printable materialsLessons made for the screen, with exercises that check themselvesEvery lesson as a printable PDFEllii
School management
Lesson balanceTracks prepaid lessons per student, with change historyNot availableedio
Lesson analyticsSessions, attendance rate, lesson duration and student feedbackNot availableedio
Multiple teachersOwners, admins and teachers in one school accountOrganisation accounts with admin tools and class sharingTie
General
PricingFrom €20/mo · 7-day free trialA subscription per teacher, with plans for private teachers and schoolsTie

See it in edio

What lesson prep, a live lesson and a school look like inside edio.

  • A whole lesson from one line

    Type a topic, or upload a PDF or a picture, and get a complete interactive lesson in about a minute: reading, listening, grammar, vocabulary and speaking. Edit any exercise before you teach.

    More about the AI lesson generator
  • The edio virtual classroom: a lesson with exercises that teacher and student work on together

    One lesson, live, for everyone

    Students work in the lesson on their own screen and you see their answers as they type. Exercises check themselves, so the lesson keeps moving.

    More about virtual classes
  • The school in one place

    One calendar for every teacher, lesson balances that update after each class, chat, homework and analytics, all under one login.

    More about school management

When Ellii makes sense

We'll be straight with you: for some teachers Ellii is the better pick.

Strengths

  • A huge English library of lessons, flashcards and videos
  • Every lesson as a printable PDF and as digital tasks
  • Digital homework with results, teacher feedback and AI help with scoring
  • New materials added every day
  • Plans for schools, districts and libraries, plus Ellii Solo for self-study

Weaknesses for language schools

  • English only, so no help with the other languages your school teaches
  • Tasks are shown from the teacher's screen: students don't work in the same live lesson
  • Built around its own library: turning your own materials into interactive lessons is not its focus
  • No lesson balances, scheduling or lesson analytics for a school

Where edio wins for language schools

Ellii gives you materials for a lesson. edio is the place where the lesson happens.

Teaching advantages

  • Teacher and students work in the same lesson in real time, and you see answers as they type
  • AI builds a whole interactive lesson from your own topic, PDF or image in about a minute
  • 32 exercise types that check themselves, in the lesson and in homework
  • Ready-made lessons in English and Polish, and 18 languages for your own

Business advantages

  • Lesson balance per student: see who is running low and top up in one click
  • Attendance, homework and lesson history logged for every student
  • One login for lessons, materials, student profiles, chat and analytics
  • Several teachers under one school account, with no separate subscriptions

Real scenarios: what should you choose?

Specific situations, specific answers.

  • Scenario 1

    English classroom with a printer

    You teach English in a classroom, print or project your materials, and want a very large library of topics and flashcards.

    Ellii works here

  • Scenario 2

    Online tutor, one-to-one lessons

    You teach on video calls and want students to work in the lesson themselves, with homework and progress in one place.

    Choose edio

  • Scenario 3

    School that teaches several languages

    Your teachers teach English, Polish or other languages, and you need lessons, homework, attendance and lesson balances together.

    Choose edio

  • Scenario 4

    Teacher who wants both

    You like Ellii flashcards and printables, and also want live interactive lessons and an AI lesson generator.

    Use both side by side

How to switch from Ellii to edio

Three steps. You can teach your first edio lesson on the day you sign up.

  1. Start a free trial

    Sign up in a minute, with no credit card. The 7-day trial has every feature, for up to 5 students.

  2. Prepare your first lessons

    Start from the ready-made library, or generate a lesson from a topic, your own PDF or a picture. Keep Ellii for flashcards and printables if you like.

  3. Add students and teach

    Add students by email: each one gets an invitation with a login. Create a virtual class and teach your first lesson live.

Start for free

Frequently asked questions

Is Ellii the same as ESL Library?
Yes. Ellii used to be called ESL Library. It is a library of English lessons, flashcards and videos for teachers, with digital tasks for students.
Can I use edio and Ellii at the same time?
Yes. Some teachers keep Ellii for printable materials and flashcards and use edio for live interactive lessons, homework and running the school. edio does not need anything imported from Ellii.
Does Ellii have AI?
Yes. Ellii Bot helps score students' writing and speaking answers, and teachers can review its feedback before it goes out. edio uses AI earlier: its lesson generator builds a whole interactive lesson from a topic, PDF or image, and you can edit any exercise before you teach.
How much do Ellii and edio cost?
In November 2026 Ellii listed plans for private teachers from $14 a month and school plans at $250 per teacher a year. edio starts at €20 a month, with a 7-day free trial and no credit card.
Which is better for a school that teaches more than English?
edio. Ellii is made for English only, while edio supports 18 languages and has ready-made lessons in English and Polish.

Try edio for your language school

7-day free trial · AI credits included · No credit card required