Tutoring business software
Stop chasing students for lesson payments.
Kadrella is all-in-one software for private tutors and small tutoring businesses: students, teachers, lessons, invoices and payments in one place. Connect WhatsApp, your bank and Superprof, and Kadrella automates the rest.
Free forever plan. 0% commission on your lessons. No credit card. Hosted in Europe.
Everything to run your lessons, in one place.
From first contact to payment received.
Students and teachers
- Unlimited students and teachers
- Import from an Excel or CSV file, in minutes
- Every teacher gets their own space: calendar, students, payments
- Your students in your phone's contacts
Scheduling
- Set a lesson once, recurring slots repeat themselves
- Your lessons in Google Calendar, automatically
- Online lessons checked on Discord
Messages
- WhatsApp and Discord in one inbox
- Reminders go out for you
Superprof
- Every request gets a reply and a time slot
- Superprof balance withdrawn automatically
Payments
- Transfers reconciled on their own
- No more opening your bank app to see who paid
- Bank transfer, or PayPal through the bank connection
Invoices and follow-ups
- Invoices and payment tracking
- Follow-ups go out even when you forget
Numbers
- Net revenue, average price and lesson count for the month
- Your numbers without doing the math yourself
How it works
Your tools, already connected.
Kadrella fits the tools you and your students already use, so nothing has to be typed twice. Each one connects in a minute, and skipping it changes nothing else: unused integrations just stay out of the way.
Kadrella doesn't make you switch tools. No built-in video app, no payment platform: you teach wherever you like, your students pay you the way they already do, and Kadrella tracks payments without ever collecting them. You keep your way of working, and Kadrella fits around it.
From the first message to payment.
A student writes on WhatsApp. Kadrella suggests a slot, schedules, sends the reminder, issues the invoice and reconciles the payment. You approve each message with a word, or let Kadrella reply on its own.
- ✓ No back-and-forth to find a time that works
- ✓ One less reminder to remember to send
- ✓ Nothing left to invoice or chase afterward
AI connector
Run your lessons from Claude, ChatGPT or Le Chat.
Connect Claude, ChatGPT or Mistral's Le Chat to your Kadrella organization. The AI reads your students, lessons, payments and WhatsApp messages, then acts: create a lesson, cancel one, chase an unpaid one.
- "What lessons do I have this week?"
- "Who hasn't paid me this month? Send them a reminder."
- "Léa can't make it on Thursday, cancel her lesson."
Included in the Pro plan, through Kadrella's MCP server.
Read the latest WhatsApp messages and act on them.
Two messages need an action:
- Léa M.Sorry, I can't make it on Thursday, can we cancel the lesson?
- Rayan K.All done, I sent the €70 transfer for October.
Done. Léa's lesson on Thursday 16 October is cancelled and removed from Google Calendar. Rayan's transfer has arrived: his two October lessons are marked as paid.
The founder's story
Built by a teacher, for his own tutoring business.
I've taught maths and computer science since 2020, and I run my own private-tutoring business, Head of Science: several teachers, 500+ students. I'm also a software engineer. In 2024, I started building this tool for myself, because tracking payments and chasing late ones took every Sunday. I've used it every day since. Kadrella is that same tool, opened up to other teachers.
CS engineer, Sorbonne UTCPortfolio
Comparison
Built for private tutors and small tutoring teams.
Most tools target centres (portals, multi-branch, LMS). Kadrella covers what they leave you to do by hand: WhatsApp, Superprof and bank reconciliation.
| Kadrella vs. the rest | Kadrella | TutorBird | Teachworks | TutorCruncher |
|---|---|---|---|---|
| Free-forever plan | ✓ | ✗ | ✗ | ✗ |
| Fits solo tutors | ✓ | ✓ | ✓ | ✗ |
| Fits multi-teacher teams | ✓ | ✓ | ✓ | ✓ |
| No fee per teacher or per lesson | ✓ | ✗ | ✗ | ✗ |
| WhatsApp built in (messages, reminders, invoices) | ✓ | ✗ | ✗ | ✗ |
| AI secretary that replies to students on WhatsApp | ✓ | ✗ | ✗ | ✗ |
| Superprof requests & balance handled automatically | ✓ | ✗ | ✗ | ✗ |
| Automatic bank reconciliation | ✓ | ✗ | ✗ | ✗ |
| Automatic lesson reminders | ✓ | ✓ | ✓ | ✓ |
| Automatic invoicing | ✓ | ✓ | ✓ | ✓ |
| Online card payments | ✗ | ✓ | ✓ | ✓ |
| Cost for 50 students and 10 teachers / month | €0 to €49/mo (Pro) | ≈ €54/mo | ≈ €75/mo | ≈ €28/mo + 1% |
Cost to manage 50 students and 10 teachers per month, about 200 lessons. Public prices checked on 29 October 2026, roughly converted: TutorBird $16.95 + $4.95 per extra tutor (9 tutors) · Teachworks $16.49 + $0.32 per lesson · TutorCruncher €28 + 1% of lessons paid outside its system. Kadrella: Pro plan, unlimited teachers at no extra cost. For information only.
Kadrella also runs in any currency and timezone: set once when you create your organization.
See the full software comparison →Security
Your data stays yours.
You trust us with your business, so we take it seriously.
Learn more: PrivacyTerms of serviceStatus
- Encrypted connections and stored data
- Hosted in Europe, GDPR compliant
- Read-only bank access, never your funds
- Daily backups, export anytime
Pricing
Simple and transparent.
Start for free, or try Starter or Pro for 14 days at €0, no credit card.
The basics to run your tutoring, free forever.
Free forever, no card
- Unlimited students
- Unlimited teachers
- Payment tracking
- Lesson management
- Help importing your existing data
- Email support
For solo tutors and teams: scheduling, WhatsApp and Superprof in one place.
14-day trial, no credit card
Then €29/mo
- Everything in Free
- Lessons synced to Google Calendar
- Students and teachers synced to your contacts
- Superprof lesson requests sent automatically
- Lesson reminders sent over WhatsApp
- Lesson attendance checked on Discord
- Email support
Nothing left to invoice, reconcile or follow up on by hand.
14-day trial, no credit card
Then €49/mo
- Everything in Starter
- Invoices sent automatically
- Transfers reconciled automatically
- Reporting exports (Excel, CSV, JSON)
- AI assistant to query your data
- Connect Claude, ChatGPT or Le Chat
- AI secretary that replies to prospects
- Student progress summarized by AI
- Lesson recap generated from Discord
- Email + video support
Custom modules are possible: an integration with a tool you already use, or an extra feature. This isn't a commitment: we look at each request and may say no.
Talk to us before you subscribeThe trial covers Starter or Pro, once per organization. At the end, without a subscription, your account moves back to the Free plan automatically.
Several teachers? Same price. 0% commission on your lessons and no fee per added teacher, on every plan.
Frequently asked questions
Do I need to be tech-savvy to use it?
Can I move over from another tool?
Do my students need WhatsApp?
Is there a free trial or a commitment?
Is my data safe?
Can Kadrella manage several teachers?
How does Kadrella help small tutoring businesses?
Does Kadrella work in other countries and currencies?
Is there a yearly plan?
How does the referral program work?
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Spend your Sundays teaching, not chasing payments.
Free to start, set up in minutes. No card.
