Run your dive center.
Know it makes money.
Thalassa is management software for freediving and dive centers. Bookings, course sessions, students and staff live in one place, and your profit, margin and break-even are calculated from the work you already record.
Sound familiar?
Busy season, full calendar, and still no idea if last month made money.
Course bookings live in WhatsApp, the schedule in a Google Sheet, payments in a notebook.
A student paid for a 4-session course. Nobody is sure which sessions they’ve already done.
Monday morning: which of last week’s bookings still don’t have sessions scheduled?
An instructor gets double-booked because two people edited the sheet.
A medical note is buried in an email and found after the briefing.
You only know if the month was profitable after a Sunday rebuilding numbers in Excel.
How it works
One flow, from what you sell to what you earn
Thalassa follows how a center actually runs, so the numbers build themselves as your team works.
- 1
Packages
Define your courses and experiences once: price, currency, and the sessions each one includes (theory, pool, open water, debrief).
- 2
Bookings
Book a student onto a package and Thalassa creates a session ledger for them: exactly what they are owed and what is done.
- 3
Sessions
Schedule sessions, assign instructors, mark attendance and sign off. Double-booked instructors are blocked before it happens.
- 4
Numbers
Revenue, collected payments, costs, profit, margin, fill rate and break-even update automatically. No month-end spreadsheet.
What’s inside
Everything the front desk and the owner need
Course package tracking
Every student’s sessions owed vs. completed, per booking. Group bookings get a ledger per person.
How package tracking worksInstructor scheduling
Assign lead and assistant instructors, see unassigned bookings, and get warned about ratio and location clashes.
See schedulingStudent records
Certifications from any agency, medical notes, emergency contacts and experience level on one profile.
See student recordsProfit & break-even
Revenue, salaries, fixed costs and expenses roll into profit, margin and a live break-even tracker.
See financial reportingPayments & balances
Record deposits and partial payments by method. Always know what each booking still owes.
Explore the platformChannels & sources
Tag every booking as direct, OTA or partner, with the source and OTA reference, so you know where revenue comes from.
Explore the platformFreediving first
Built around how freediving courses really run
Most dive center software is built for scuba fun dives and gear rental. Thalassa started in freediving centers, where a single course is several sessions across pool, depth and theory, and students miss, repeat and reschedule.
- Multi-session courses with sessions owed per student
- Certification agency and level on every course package
- Existing certifications (AIDA, Molchanovs, SSI, PADI and more) on each student
- Attendance and sign-off on every session
Pricing
One simple founding price
We are opening Thalassa to five founding centers. You get the whole platform for a yearly price that never goes up, plus a direct line to the people building it.
- No per-instructor fees and no session limits
- Every feature we ship is included
- We set it up with you, using your real courses
Founding member plan
€500 / year
About €42 a month, billed yearly
Your price is locked in for life. It never goes up while you stay subscribed.
Everything included
- Bookings, course packages and per-student session tracking
- Session scheduling, instructor assignment and attendance
- Student records: certifications, medical notes, emergency contacts
- Payments, deposits and outstanding balances per booking
- Finance dashboard: revenue, costs, profit, margin and break-even
- Unlimited staff accounts, students and sessions
- Every new feature we ship, at no extra cost
- Guided setup and a direct line to the founders
No card needed to book a demo. We walk through Thalassa on your own courses and pricing before you decide.
Questions owners ask
Is Thalassa only for freediving centers?
No. It started in freediving, but it works for any center that sells courses and experiences made of scheduled sessions: scuba, freediving, snorkelling and more.
Do my students book online through Thalassa?
Not yet. Thalassa is the operations and finance system your team uses to manage bookings, sessions and money. Bookings from your website, WhatsApp or OTAs are entered and tagged by channel, so you still see where revenue comes from.
Can I run more than one center?
Yes. One business can run several centers, each with its own team, schedule and numbers.
Which currencies are supported?
Packages and bookings can be priced in EUR, USD, IDR and MXN today. Tell us if you need another one.
What does the demo look like?
A 30-minute video call. We set up one of your real courses and walk through a booking from first message to profit.
See your own center in Thalassa
Book a 30-minute demo. We’ll set up one of your courses live and show you where your numbers come from.