Booked, out,
and back again.

A calendar that shows what is reserved and what is free, so you can answer "is it available next Thursday?" without checking three places first.

Free plan, no credit card, and your booking data stays on your own computer.

Argo Books
Rentals
December 2025
SuMoTuWeThFrSa 123456 78910111213 14151617181920 21222324252627 28293031
HD ProjectorSarah Miller Out
RentalDec 9 – Dec 12
Returnsin 3 days
How it works

Three steps from enquiry to return

Double bookings happen when availability lives in somebody's head. This puts it on a calendar that the bookings themselves keep current.

Step 1

List what you rent out

Each item with its rate and how many you have. One record covers the whole fleet of a given item.

Step 2

Take the booking

Pick the customer and the dates. The calendar blocks the item out and stops it being promised twice.

Step 3

Mark it back in

Returns free the item up immediately and close the rental off against the customer.

At a glance

Availability you can trust when the phone rings

The booking calendar shows each item across every date, with what is out, what is reserved and what is free. Because bookings write to it directly there is no second diary to keep in step.

  • Every item and every date on one calendar
  • Bookings tied to the customer who took the item
  • Overdue returns visible without hunting for them
The Argo Books rental calendar showing booked, reserved and available dates across rental items

Get your bookings on one calendar

No account, no credit card, and nothing to set up before your first booking.

Download free
Why it matters

What changes when availability is visible

No more double bookings

An item that is out cannot be promised to somebody else, because the calendar and the booking are the same record.

Overdue returns surface themselves

You see what should have come back yesterday without going looking for it.

Rentals land in your books

Mark a rental paid, or invoice it, and the money lands in your revenue with the customer attached.

One answer, not three

Availability, price and history all come from the same record, so what you tell a customer is what the system knows.

Privacy

Your books stay on your computer

Argo Books is a desktop application, not a cloud service holding your finances on someone else's server. Your records are written to your own machine, and you can back them up or move them like any other file.

  • Records and documents stored locally
  • No third-party cloud storage of your financial data
  • Your data moves and backs up like any other file
The Argo Books folder open on a local disk, showing receipts, invoices and the database file stored on this computer
Who it's for

Built for the way you actually work

Equipment hire

Tools, machinery and vehicles booked out by the day or the week.

Event businesses

Furniture, staging and gear across overlapping event dates.

Kit and gear rental

Cameras, instruments and sports equipment with fast turnaround.

Anyone lending on terms

Keep track of what is out, who has it, and when it is due back.

Questions

Before you download

Argo Books automatically flags rentals as overdue when the return date passes. Color-coded status badges make it easy to spot late returns at a glance, so nothing slips through the cracks. You can see all overdue, active, and completed rentals from a single dashboard.

Yes. Each rental item has a deposit, and a rental adds it up for every unit. When the item comes back, you refund all of the deposit, part of it, or none, and add any late fee or damage as an extra charge. You can create an invoice straight from the rental record, with the customer, charges and deposit filled in, so there's no double entry.

Yes. Rental management is a core feature available on both the Free and Premium plans. You can create and manage rental bookings, track deposits, and monitor return dates at no cost. Premium users additionally benefit from unlimited invoicing directly from rental records.

Rental management in Argo Books is designed for any business that lends or rents items: equipment rental companies, tool libraries, party supply rentals, AV equipment providers, and more. If you need to track who has what, when it's due back, and what they owe, Argo Books handles it.

Stop checking three places for one answer

Download Argo Books and put your bookings on one calendar. Free plan, no credit card, and your data stays on your own machine.