> For the complete documentation index, see [llms.txt](https://docs.rezonuniversal.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rezonuniversal.com/master.md).

# Overview

## Just some of the Rezon Universal features

### The best price

For only 1 USD/day you can get a fully functional booking tool to start selling air and rail tickets on your website.

### SAAS booking tool

This booking service is hosted on powerful server platforms. The system is accessible 24/7. Easy integration by means of an iframe or HTML forms, minimum actions needed. All you need to do is create your own applications, integrate your booking engine with the social networks by means of our integrated API.

### Layout customization

All our product versions include a range of built-in tools for customization of the front-end, invoices and notification templates.


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