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Today's sessions
Notebook
Invoices & finances
Sample view. Every piece below is shown in motion.
A better experience for your students and clients.
A complete toolkit for you.
Pages
7/10
Past tense practice
7/3
Small talk: weekends
6/26
Self-introductions
Fri, Jul 10 · 10:00–11:30
Past tense practice
Today's sentences
Yesterday I go went to Kyoto.
We saw the temples and ate too much!
New words
Today's feedback
Great self-correction on “went”! Next time, let’s practice linking two past events.
One notebook, for each person you teach.
Everything you write during a session builds up in that person’s own notebook. Turn the pages, and the whole path you’ve walked together is right there.
Write together
Open the same notebook at the same time and write together, live.
Language tools built in
Furigana, part-of-speech stamps, ◯△✕ marks, and a dictionary — inside the editor. Turn them off for other fields.
Vocabulary builds itself
Words you add from the notebook land straight in their vocabulary list.
I have lived in Tokyo since for three years.
“for + a length of time”prep — three years, two weeks, a long time…
Write, and it arrives.
No save button, no exporting. What you write in the notebook is on their page the moment you write it.
Give them a page of their own.
Send one link, and they can open their own notebook, materials, vocabulary, and your comments — anytime. No app to install, no account to create.
Only the people you’ve issued a page to can see it. It’s never public.
Here’s how the rest of the work gets done.
Tue, Jul 14
Synced · every 5 minCalendar sync
Keep booking in your usual calendar. cotobo syncs every 5 minutes and turns events into draft lesson records.
cotobo。 Invoice
PDFInvoices
At month-end, tick the unbilled lessons and click once. A PDF with your bank details and a QR code is ready to send.
Finances
Dollars from platforms, yen from direct students — mixed currencies arrive already tallied.
Open this week
auto-talliedAvailability × booking sites
Your busy times flow to your booking site automatically (iCal), so double bookings just stop happening. You can also email the list to yourself, with changes highlighted.
“How about we meet tomorrow?”
Recording → Notes
Record a pronunciation model on the spot and pin it to the note. They can replay it anytime on their page.
My goal
Pass JLPT N2 this year
Goal sharing
The goal your student writes stays visible — at the top of their page, and on yours.
Your day
Morning
Your calendar is already synced
In session
Just write in the notebook
The moment it ends
A one-line session comment, sent on the spot
Month-end
Invoice in one click. Finances tallied.
Three simple plans. Try Pro free for 30 days.
Free, Standard, and Pro. Every new signup automatically gets the full Pro plan for 30 days — no credit card required. After the trial, you’re switched to the free Free plan automatically, with no charge.
Free
Start free, with your records.
Standard
When your student list grows.
Pro
Let go of everything that isn’t teaching.
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