ACRISS classes, deductible, mileage package, deposit as a pre-authorization. The same platform that runs daily at Lake Constance, for your fleet.
Example rental company with demo data. Structure and logic match the live platform.
No paperwork at the counter, no waiting, no app install.
Example rental company with demo data. Structure and logic match the live system.
Deposit as a pre-authorization, released automatically after the return. Invoices and corporate customers with consolidated billing. Bank reconciliation with automatic matches. Every morning at eight, the report: utilization, returns, open items.
We connect to all of it. Your payment provider, your insurer, your stations stay exactly where they are.
Photograph front and back, check minimum holding period, young-driver surcharge automatic. Done before handover, not at the counter.
Reservation on the credit card at handover, automatic release after a damage-free return. No cash, no manual work.
Mileage, fuel level, paint condition photographed all around, signed digitally. Compared automatically at return.
Nexi or Stripe. Card, Apple Pay, Google Pay, corporate invoicing with consolidated billing.
Pickup at one station, return at another. The system calculates availability and the surcharge.
Due dates per vehicle, the appointment automatically blocks availability. No vehicle gets rented out by mistake.
Connect to comparison portals of your choice through the open interface, one inventory, no double booking.
All data via API and export. Tax advisor, insurer, workshop, accounting.
Payment with deposit as a pre-authorization, driver's license check, handover protocol with photos, one-way rental between stations. Named brands belong to their owners; we connect to their systems, we do not resell 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 the rollout, set the system up for your business and are there for the go-live. After that, you reach us directly, no hold queue and no ticket number.
Robert Bückel, founder · robert@tentacl.ai · +49 156 78314317
Weekday replies the same day. During the season we're also there on Saturdays, with a fixed phone number instead of a hold queue.
The booking flow, payment and server are monitored, nights and weekends. Anything unusual is in the morning report before a customer notices.
Not the other way round. Your seasons, your rules, your pricing map. What makes your business different, we build in.
Under the booking flow there's no self-built island system, but Odoo: the business software that over 13 million people worldwide work with. On top of it we build what didn't exist yet for your business.
Accounting with DATEV export, invoices and dunning, point of sale, inventory for kiosk and shop, HR and time tracking, reports. None of this do we need to build, it's there and proven for years. No second program, no manual data export.
The booking flow with vehicle classes and stations, the customer account, the wallet card, driver's license check, deposit and handover report, 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 leave one day.
A second station, workshop, accessory rental, 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 charges by vehicle. We don't. Whether your rental business has fifty units or a thousand makes no difference to us — you pay for what the system should be able to do. No commission per booking.
Your team works at the counter instead of on paper.
Your customer books on their own. No commission to the portal.
Your team knows each morning what's coming up.
Your rental business organizes 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 necessary. In the configurator you put your package together yourself and see the price instantly.
Data from your old system, fleet and stations, pricing rules, training for your team. You only choose whether to pay it as a one-time fee or spread it over 24 months. With the spread-out option, the installment drops off from month 25, and you only pay the base amount from then on.
We visit you two to three times: seasons, rules, cash register, registration.
We set everything up: your map, your prices, your emails.
We pull customer records and bookings from your old system. Nothing gets lost.
We train reception, team and accounting on your real cases.
We support the first days. After that: a fixed phone number, morning report, watchdogs.
Open slots from our calendar. You book it yourself, you'll get the video link right away by email. There's nothing you need to prepare.
Weekdays, 30 minutes, no sign-up
Prefer to call? +49 156 78314317 · robert@tentacl.ai
You do. Customer records, consents and booking history live in your own tenant on servers in Germany and can be exported in full at any time. Even if you leave one day.
Nexi and Stripe, each with credit card, Apple Pay and Google Pay, a deposit with a later balance payment, refund on cancellation according to your schedule. PayPal via Stripe.
No. A fixed monthly amount, plus a one-time setup fee. What your rental business earns stays with you.
Six to ten weeks. Existing bookings are carried over, the customer notices nothing about the switch except a better booking page. For founding customers in 2027: go-live by March 15, otherwise no license until the start.
Because it makes no difference to us. A business with a thousand units is no more work for us than one with fifty — the same software, the same support. So you pay for what the system should be able to do. If you only want to digitize the counter, you only pay for that.
Go-live guarantee by March 15, data migration included, half license in winter. After that, regular terms apply.
Pick a time