Quick Access

Rental Spaces

Quick access URLs for instant booking. Calendar-based reservations with overtime billing calculated automatically.

UnlockOS

STUDIO ONE

Occupancy

60%

Meeting Room 3h

¥5,000

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Checked in

The Challenge

Creating booking URLs and sending access codes requires manual coordination every time
No way to automatically charge for overtime when guests stay past their booking
Calendar management across multiple rooms is fragmented and error-prone
No-shows and last-minute cancellations leave rooms empty with no revenue

How UnlockOS Helps

Quick access mode: generate a payment+access URL in seconds, share via any channel
Overtime billing calculated automatically — base time + per-30min overage
Calendar UI with month/week/timeline views for multi-room reservation management
Auto-checkout at booking end time with instant settlement

Others start from the booking. We start from the key.

Existing reservation SaaS sells calendar slots and treats access as an afterthought. UnlockOS reverses this: we slice physical access rights by time and identity, so payment-to-key delivery is one continuous URL.

Payment → key in one URL

Guests open a link, pay, identify themselves, and receive their access code — without ever leaving the page.

Single-use vs recurring keys are different UIs

A one-night guest key and a monthly resident key are fundamentally different flows. We model both natively, not as features bolted onto a calendar.

Works with or without a PMS

Light facilities run standalone. Hotels run alongside their existing PMS. Both work because the design starts from the key layer.

We design the most painful moments out of existence.

When you start from access (not the calendar), you can absorb the moments that hurt operators most — as part of the core design, not as patched-on features.

Late-night and unattended check-ins drain staff and create response delays.

Guests serve themselves from a URL. Zero staff hours required, any time of day.

Guests overstay their booking, and overtime charges are never collected.

Automatic checkout, key revocation, and overage charges hit the card on file the moment the booking ends.

PINs and codes sent by message get lost, copied wrong, or leaked.

The access URL itself carries the PIN/QR. Guests just tap and enter — no plain-text codes flying around.

Multiple-room calendars conflict, and double bookings sneak through.

Two-way Google Calendar sync with conflict detection and a visible resolution UI when something does collide.

Legal guest registry forms (hotel / vacation rental laws) get skipped.

If the form isn't filled out, the key isn't issued. Compliance is wired into the access path, not after the fact.

Payment-to-key handoff requires manual coordination every single time.

The instant payment clears, the key appears on the same URL the guest is already looking at.

Billing Models

Flexible pricing for every scenario

Fixed + Overtime

Base time at a flat rate, plus per-interval charges for overtime.

Meeting Room: 3h ¥5,000 + ¥500/30min overtime

Time Slot Booking

Fixed pricing for specific time blocks.

Studio: 10:00-12:00 ¥3,000, 13:00-17:00 ¥5,000

Hourly Rate

Simple per-hour pricing for flexible bookings.

Party Space: ¥2,000/hour, 2h minimum

User Journey

Seamless experience from start to finish

Operator

Create quick access URL

Select door, set duration and price in dashboard. Generate shareable URL in seconds.

Operator

Share URL with customer

Send via email, LINE, or embed on website. No booking system needed.

Guest

Open URL and enter email

Guest opens the link, enters email for receipt and communication.

Guest

Complete payment

Pay via Stripe (or skip if set to free). Free mode available for complimentary access.

System

Issue time-limited access key

Entry key valid only for the specified duration. Auto-expires at booking end.

System

Auto-checkout and settle

End time triggers checkout + settlement. Overtime charges applied if applicable.

How It Works

Get started in 3 steps

Add Your Spaces

Configure rooms with base rates, overtime pricing, and available time slots.

Create Access URLs

Use quick mode for instant URLs or calendar booking for scheduled reservations.

Let Guests Self-Serve

Guests open the URL, pay, and receive time-limited access codes automatically.

9 steps to your first booking

Lock integration → rooms & plans → test booking, step-by-step with screenshots.

Open the setup guide

Features

Built for your workflow

Quick Access Mode

Generate a payment+access URL instantly. Specify door, duration, and price — share via email, LINE, or web.

Reservation Check-in

Calendar-based booking with 24h pre-check-in. Guests receive access codes after payment.

Overtime Billing

Base time + automatic overage charges. Example: 3h base ¥5,000 + ¥500 per 30min after.

Calendar Booking UI

Month, week, and timeline views for availability management across multiple rooms.

Time-Slot Pricing

Different rates for different time blocks. Morning ¥3,000, afternoon ¥5,000, evening ¥4,000.

Auto-Checkout

Booking end time triggers automatic checkout, key revocation, and settlement.

Integrations

Works with your existing tools

Payments

Standard card payments via Stripe.

Smart Locks

Two-way integration with smart lock systems. KEYVOX is built in; locks with a public cloud API are connected through an adapter.

Google Calendar / PMS / OTA

Two-way sync with existing reservation tools — Google Calendar by default, plus PMS / OTA via API and iCal.

See the whole picture — One booking system for every industry

Rental spaces are one piece of a bigger picture: When × Where × Which key × Who. See the diagram that explains how every space business runs on the same booking system.

Open the diagram