Lessonberg“The Professor has opened the gates to every tutor. He still bows to each one.”
Early access
Everything you need to teach Spanish.
Students, lessons and your calendar in one place. And the homework writes itself: the AI makes it for each student, on what they like, and the answers are checked for you.
There's still a lot to build, so during early access Lessonberg is open to every tutor, free. Everyone who joins gets a welcome gift: 30% off any paid plan, for good.
Homework is in Spanish for now. English and German are next.
Professor Whiskerstein
Homework that writes itself
Try it: three exercises from a real homework, as a student sees them.
Pretérito indefinido · A2
0 of 3
1. Pick from options
Pick the option that fits, then confirm.
Ayer ___ el tren a Madrid a las ocho de la mañana.
2. Build the sentence
Put the tiles in order. One of them is extra.
Meaning:
I arrived at the hotel late last night.
- Place 1, empty
- Place 2, empty
- Place 3, empty
- Place 4, empty
- Place 5, empty
3. Find the mistake
Tap the wrong words and write them correctly, or say there's no mistake.
.
The exercises are written by AI (Claude, by Anthropic). Students see only what you send them.
How it works
A week's homework in a few minutes, not an evening.
Choose the grammar
The topic, the level and which exercises you want.
Check what the AI wrote
Change any line, or write it again.
Send it to your students
They do it on their phones, and you see how each one did.
Each student gets their own
Students mark what they like. The grammar is the same for everyone; the sentences are about their interests.
- Anna · B1FootballMusic
El sábado Marta ___ (marcar) dos goles en la final.
- Oliver · A2CookingTravel
Ayer mi abuela ___ (cocinar) una paella enorme.
One homework, Pretérito indefinido, for both.
Lessons and your calendar
One calendar for you and your students: who, when and where.
- Weekly lessons keep their hour when the clocks change.
- The meeting link before the lesson, the recording after.
- Students get an email when a lesson moves or is cancelled.
Everything in one place
Courses and students
Invite students by email. Each has a level, interests and contacts.
Checked for you
Options and forms against the key, translations by the AI. You see every answer.
On any phone
Nothing to install: it all opens in the browser.
Students never pay
Only the tutor pays, by the number of students.
8 kinds of exercise:
- Pick from options
- Find the mistake
- Build the sentence
- Open the brackets
- Write the form
- Rewrite the sentence
- Translate into the course language
- Translate into the student's language
Prices
Everything is free during early access, with the Academy plan's limits. Paid plans come later; this is what they'll cost.
Our welcome gift to everyone who joins during early access: 30% less on any plan, for good. We expect early access to end in January 2027, and we'll email you a month before.
Starter
Free
for good
- 3 students
- 20 generations a month
Tutor
€10 a month
- 10 students
- 100 generations a month
Studio
€19 a month
- 25 students
- 250 generations a month
Academy
€29 a month
- 50 students
- 500 generations a month
Any paid plan is free for 30 days, no card needed. Every plan has the calendar, answer checking and every kind of exercise. Prices include VAT. Prices in hryvnias are for customers in Ukraine. Students never pay.
Questions
Which languages?
Courses and the calendar work for Spanish, English and German. Homework is in Spanish for now; English and German are next.
Does AI really write the exercises?
Yes, Claude by Anthropic. You see every exercise and can change it before your students do.
What do students need?
An email address and a browser. They open the link in their invitation and work on a phone or a computer. They never pay.
Can I stay on the free plan?
Yes: the Starter plan is free for good, for up to 3 students and 20 generations a month.
Can I try a paid plan?
Yes: once paid plans start, any of them is free for 30 days, no card needed. If you don't subscribe, you go back to the Starter plan, and nothing is deleted.
Why early access?
Lessonberg works, but there's still a lot to build, and the tutors who join now help decide what comes first. So during early access it's open to everyone, free, and every tutor who joins gets a welcome gift for their trust and their help: 30% off any paid plan, for good. We expect early access to end in January 2027.
Where is my data?
In Frankfurt, Germany. To write and check exercises, Claude (Anthropic, USA) gets what that takes: the homework, the answers, the student's level and theme, never names or email addresses, and it doesn't train on them. The privacy policy has the details.
Join while early access lasts
Professor Whiskerstein
“The Professor enters every early tutor in a special scroll. That ink doesn't fade.”