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All of it. In one place.
The tools you’ve been juggling, finally connected.
The all-in-one for one-on-one professionals.
Preparing for launch
New registrations are not open yet. Launch details will be announced here.
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 work with.
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
Write, and it arrives.
No save button, no exporting. What you write in the notebook is on their page the moment you write it.
It all happens on one screen.
Write a line, add a translation into the note with one tap, drop in a stamp, and the feedback follows. No switching apps, no copy-paste.
A language lesson
I might have a meeting tomorrow.
inserted into the note
明日、会議があるかもしれません。
A coaching session
This week: build the prospect list
Grow the list from 10 to 30. Start with the A-rank leads — you already have the intros.
Notes, translation, stamps, feedback — all in this one screen.
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.
My goal
Pass JLPT N2 this year
Next lesson
Sun 7/14 · 10:00
A note from you
Great work today! 🎉
Vocabulary · 12 words
Notebook
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.
Plans for launch.
cotobo is preparing for launch, and new registrations are not open yet. Free, Standard, and Pro are the planned plans; trial details will be announced when registration opens.
Free
Start with your records when cotobo launches.
Standard
When your student list grows.
Pro
Let go of everything that isn’t your craft.
cotobo is preparing for launch.
Preparing for launch
New registrations are not open yet. Launch details will be announced here.