Everything you need to run your rental.
Fleet planning, pricing, bookings, check-in and distribution, built around how a rental desk works.
What the rental software does
Fleet planning
Every car and booking on one page. The planner puts cars on bookings as they come in, by the rules you set. Drag a plate onto another car of the same car type, and the two cars trade every booking to come. Service intervals make workshop jobs, and a blocked car or a dated job comes out of what you sell.
Why switch to Mellow.
What changes on the day your rental moves to Mellow.
The usual way: Five tools and a spreadsheet
One system for the whole rental
Fleet, prices, bookings, the desk, check-in, the Inbox, resellers and affiliate links in one place. Staff sign in once, with a password, Google or Microsoft, and copy nothing between tools.
The usual way: Every car placed by hand
The planner picks the car
Mellow puts each booking on a car as it comes in, and plans again after every change and every hour. A car you pin stays where you put it.
The usual way: A price nobody can explain
Every price, line by line
Prices come from your rules, and each booking shows its price line by line. Each morning Mellow suggests a change where a car type runs ahead of or behind its target fill, and says why. Nothing changes until you accept it.
The usual way: A machine that decides for you
AI that helps, and you stay in control
Mellow's AI reads licences and translates messages, but it sets no price and sends nothing by itself. Ask the Cow, Mellow's assistant, to add extras, insurances, fees or rates in your own words. It shows every record on one card, asks when it does not know a price, and saves nothing until you press Save all. Your own AI agent can change prices through the API or Mellow's MCP server, and the price history shows who changed what.
The usual way: Iceland as an afterthought
Made for Iceland
The kilometre tax goes to Samgöngustofa from the odometer readings. Invoices go straight into dk, and a journal file takes them to other accounting systems.
The usual way: Updates now and then
Better every week
New things and fixes go out every week, each one in the public changelog. Ask for a change, and you talk to the people who build Mellow.
Security, from the first line.
How Mellow keeps your data and your customers' data safe.
Card numbers never reach us
Card payments go through the payment provider's own page and card terminal. Mellow never sees or stores a card number.
Your data stays in the EU
Stored in the EU, with Cloudflare. The app runs in the EU.
Two-step sign-in
A code from an app or an email, on top of the password. The owner can require it of everyone.
Each rental walled off
A rental sees only its own data, and an automated test checks that every query fetches only its own rental's data. Mellow's staff open a rental only for support, are asked for a reason, and each visit is logged.
Personal data kept short
Licence photos are deleted 90 days after the return, and each view is logged. Customer links stop working 30 days after the return, and a customer's data can be exported or anonymised on request.
Checked, and checked again
Automated checks on every change, a full security review, and a security check every week.
More in the box.
Booking widget
Paste two lines of code into your website, and customers book there, from search to payment. The widget takes your brand colour and your site's typeface, in six languages. Customers see prices in their own currency, pay in yours, and pick from the payment terms you sell. A WordPress plugin puts it on a WordPress site.
Icelandic, English and more
Staff screens come in Icelandic and English, each person's pick. Check-in, manage booking, the payment pages and the emails also come in German, French, Spanish and Italian. The agreement and the terms stay in English.
On any phone
Every screen fits a phone, at the desk, in the lot and in the workshop. From the home screen, Mellow opens full screen as an app.
Roles and stations
Each person gets a role for their job, such as cleaning, checks, pricing or accounts, and sees only its pages. A cleaner opens Mellow straight on the cleaning list. A tablet at the desk or in the workshop is a station: each person opens it with their own PIN, and it allows only the roles you tick.
Moving in
We bring your cars, customers and bookings over from your current system.
Running a rental?
The first rentals are moving to Mellow now. Write to us, and we will show you Mellow and plan your move.
hello@mellow.isAre you a reseller?
Booking sites, travel agents and tour operators can book through our API. Write to us about access and partner contracts.
partners@mellow.is