Platform for apartment owners

Manage apartments without the chaos.

Booking calendar, automated guest messages and financial reports — in a single dashboard. 30 days free, no card required.

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No card · 10-minute setup · Support 7 days a week

flatbase.app/calendar

Booking panel

April 2026

Confirmed Check-in Check-out
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Johnson · Apt. 12
Martin · Apt. 7
Lee · Apt. 3
87%
occupancy
14
check-ins
+12%
vs. March

Features

Everything a modern host actually needs

From the first booking to year-end reports. FlatBase replaces your spreadsheet, chat and calendar — all at once.

Booking calendar

Clear multi-calendar view across all apartments. Drag-and-drop bookings, quick add, day and month views.

Smart locks

Integration with TTLock and Nuki. Generate one-time access codes for guests, auto-expiring after checkout. No keys to hand over.

Automated messaging

Templates sent at the right moment — confirmation, check-in, review request. Email and SMS out of the box.

Reports & analytics

Revenue, occupancy, RevPAR, ADR in one dashboard. CSV and PDF export for your accountant.

Team & roles

Invite cleaners, reception and owners. Everyone sees exactly what they need. Full audit log of every change.

API & Webhooks

Full REST API and webhooks to integrate with your tools. Automate workflows, plug in your own CRM, accounting systems and BI tooling.

A closer look

Three pillars of FlatBase

Calendar

One view, every booking

Direct, phone, or web — every booking lands in the same calendar. Payment status, notes, change history — all at a glance.

  • Multi-property in a single view
  • Quick blocks (maintenance, owner stay)
  • Offline-first — changes sync when you come back online
April 2026
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Assistant

Communication that runs itself

Set your templates once and forget. FlatBase sends the welcome after booking, the check-in instructions the day before arrival and the review request after checkout — in the guest’s language.

  • Automated messages in 10 languages
  • WhatsApp and SMS integrations
  • Built-in chatbot for common questions
G
Hi, how do I get the Wi-Fi password?
The Wi-Fi is flatbase-guest, password welcome2026.
AI
G
Thanks! And check-in is at 15:00?
AI

Smart locks

Keyless check-in, zero waiting

We connect to TTLock and Nuki locks so every guest gets a unique access code for their stay. The code activates on arrival day and expires automatically after checkout.

  • TTLock and Nuki — no extra hardware needed
  • One-time codes sent automatically
  • Access history — see who entered and when

Apt. 12 · TTLock

Nowak, G.

active

Access code

4 8 2 7 0 6

17 Apr, 15:00 → 20 Apr, 11:00
Apt. 07 · Nuki Pro Idle
Apt. 03 · TTLock S31 Unlocked 14:32

How it works

From signup to first booking in 10 minutes

  1. 01

    Create an account

    Sign up with email or Google. No credit card, no strings attached.

  2. 02

    Configure your properties

    Add apartments, rates and availability. Import existing bookings from iCal or Booking.com.

  3. 03

    Manage from anywhere

    Use the browser dashboard or the mobile app. FlatBase handles the rest.

Pricing

Simple plans. No hidden fees.

30 days free on every plan. Cancel anytime.

Starter

For hosts with a handful of apartments or guest rooms.

— €/mo
  • Up to 10 apartments / rooms
  • Booking calendar
  • TTLock & Nuki smart-lock integration
  • iCal / CSV import
  • Email support
Start free

Pro

Most popular

For professional hosts and small rental agencies.

— €/mo
  • Up to 30 apartments / rooms
  • Automated messaging
  • Reports & analytics
  • API & webhooks
  • Mobile app
  • Priority support
Start free

Business

For companies managing larger rental portfolios.

— €/mo
  • Up to 50 apartments / rooms
  • API & webhooks
  • Roles & audit log
  • 99.95% SLA
  • Dedicated account manager
Talk to sales

Enterprise

For networks and operators with 50+ apartments.

Custom
  • 50+ apartments / rooms
  • Custom pricing
  • Tailor-made integrations
  • SSO and GDPR compliance
  • Custom SLA and onboarding
Talk to sales

Final pricing will be announced in May 2026. Sign up now to lock in the early-access discount.

Frequently asked

Answers before you ask

Can I really test everything free for 30 days?
Yes. You sign up without a credit card and get full Pro-plan features. After 30 days you decide whether to continue.

Can I import data from another system?
Yes. We support iCal and CSV import. On the Business plan we help you migrate 1-on-1.

Can I cancel anytime?
Of course. Subscriptions are monthly or yearly and you can cancel in one click. You can export all your data to CSV.

Does FlatBase work on mobile?
Yes — the dashboard is fully responsive in the browser, and we ship iOS/Android apps for Pro and Business customers.

How is my data secured?
Data hosted in the EU (Frankfurt), TLS 1.3 encryption, hourly backups, GDPR-compliant. We sign a DPA on request.

Do you have an API?
Yes — REST API and webhooks are available on the Business plan. Public docs at developers.flatbase.pl.

Ready to start?

Join 3,400+ properties that moved from chaos to FlatBase.

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No credit card · 10-minute setup