tentacl.ai is booking and check-in software for hotels: guests check in online from the day before, get their room key on their phone, and reception sees arrivals, room status and open payments in one system. Room categories, rates with and without breakfast, cancellation rules and add-on sales are included. It's the same platform that runs daily on Lake Constance, now also in hotel form.
Sample hotel with demo data. The structure and logic match the live platform.
No queuing at reception, no key card, no app to install.
Sample hotel with demo data. The structure and logic match the live system.
Point of sale with TSE that bills straight to the room. Invoices and company invoices. Bank reconciliation with automatic matches. Messages and queries in one place. And every morning at eight, the report: occupancy, arrivals, revenue, open items.
We connect all of it. Your locks, your payment provider, your point of sale stay where they are.
Online check-inFrom the day before: photograph your ID, confirm your details, get assigned a room. Since 2025, German guests no longer need a paper registration form; for everyone else it's digital.
Room key in Apple and Google WalletHold your phone to the door lock, no app needed. Via ASSA ABLOY Vostio, Salto, or dormakaba, with hotelbird or FlexiPass as a bridge to your existing locks.
For guests without online check-in: scan your ID, get a card or wallet key. Works at night with no staff.
At your rate, per night. Sent to the registration system, auditable for the city.
Nexi or Stripe. Card, Apple Pay, Google Pay, PayPal. Deposit, balance on arrival, company invoice.
Bar, restaurant, spa billed to the room. Fiscal signature included.
Channel managerBooking, Expedia, HRS from a single inventory. Through the open interface to a channel manager of your choice.
All data via API and export. Accountant, website, restaurant reservations, lock system.
Room keys in Apple and Google Wallet through your existing locks, lobby kiosk, guest registration, point of sale with fiscal signature, payment, and channels. Named brands belong to their owners; we connect their systems, we do not sell them.
We'll show you the system live in 30 minutes, with demo data from your industry. It is the same platform that has been handling bookings, payments and arrivals every day since summer 2026 at our reference business on Lake Constance, with real availability and real prices.
What's on this page is built and running. No prototype, no announcement, no slide.
tentacl.ai builds booking and operations systems for hosts and rental businesses: hotels, holiday rentals, car rentals and yacht charters. We come to you before setup, configure the system for your property, and are there for go-live. After that, you reach us directly, no hold music and no ticket number.
Robert Bückel, Founder · robert@tentacl.ai · +49 156 78314317
Same-day reply on weekdays. During the season we're also available on Saturdays, with a direct phone line instead of hold music.
The booking flow, payment, and server are monitored, nights and weekends. Anything unusual is in the morning report before a guest ever notices.
Not the other way around. Your seasons, your rules, your rate card. Whatever makes your property different, we build it in.
Underneath the booking flow is no homegrown island system, but Odoo: the business software used by over 13 million people worldwide. On top of that, we build what didn't exist yet for your property.
Accounting with DATEV export, invoices and dunning, point of sale, inventory for the kiosk and shop, HR and time tracking, reporting. None of that needs building, it's there and proven for years. No second program, no manual data export.
The booking flow with room categories and rates, the guest account, the room key on the phone, tourist tax and guest registration, groups, waitlist, morning report and the watchdogs that run at night. Everything a business needs that standard software doesn't cover.
Odoo is open. Your data lives in a normal database, fully exportable at any time. Even if you ever leave.
A second property, restaurant, spa, shop, more staff: there are ready-made building blocks for that, instead of a request to the vendor.
Emails are read and sorted, payments matched, reports written. Not as a gimmick, but wherever someone would otherwise be typing.
Almost everyone bills by room. We don't. Whether your hotel has fifty units or a thousand makes no difference to us — you pay for what the system needs to do. No commission per booking.
Your team works at the front desk instead of on paper.
Your guest books themselves. No commission to the portal.
Your team knows every morning what's coming up.
Your hotel runs itself.
Every module can be booked on its own, from €30 a month. As soon as a package is cheaper than the individual parts, we automatically bill the package — you never pay more than needed. In the configurator you put your package together yourself and see the price instantly.
Data from your old system, rooms and categories, pricing rules, training for your team. You only choose whether to pay it as a one-time amount or spread over 24 months. With the spread option, the installment drops after month 25, and you only pay the base amount from then on.
We visit you two to three times: seasons, rules, point of sale, guest registration.
We set everything up: your rate card, your prices, your emails.
We bring over guest records and bookings from your old system. Nothing gets lost.
We train reception, team, and accounting on your real cases.
We're with you for the first days. After that: a direct phone line, morning report, watchers.
Open slots from our calendar. Book yourself, you'll get the video link right away by email. Nothing to prepare.
Weekdays, 30 minutes, no sign-up
Prefer to call? +49 156 78314317 · robert@tentacl.ai
You do. Guest records, consents, and booking history live in your own tenant on servers in Germany and can be fully exported at any time. Even if you ever leave.
Nexi and Stripe, each with credit card, Apple Pay, and Google Pay, deposit with later balance payment, refund on cancellation per your tiers. PayPal via Stripe.
No. A fixed monthly amount, plus a one-time setup fee. What your hotel earns stays with you.
Six to ten weeks. Existing bookings are carried over, the guest notices nothing about the switch except a better booking page. For 2027 founding customers: go-live by March 15, otherwise no license until the start.
Because it makes no difference to us. A property with a thousand units costs us no more work than one with fifty — same software, same support. So you pay for what the system needs to do. If you only want to digitize the front desk, that's all you pay for.
Yes. The bread roll service runs as a standalone product, with your existing software or on its own: €199 setup, then €333 per season or €444 per year. As a module of this platform it costs €49 a month.
Go-live guarantee by March 15, data migration included, half-price license over winter. Regular terms apply afterward.
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