As such, it is not possible to download Access for Mac since the Microsoft Office suite only offers this software version for Windows and in certain subscription plans. Access is, together with Publisher, the only two software products that are only offered on computers with the Microsoft operating system and not those of Apple. However, there are several options to use Access on a Mac, so all is not lost, you just have to look for a viable alternative solution.
The first option you have is to use BootCamp. This tool is provided by Apple to create a partition on your hard drive with a Windows installation. Logically, you will need to have installed Windows in that partition, for which you will first have to have a valid copy or image of the system, but once it is done it will be as simple as booting your Mac with the Windows partition and installing Access as you are used to, through your Microsoft account. The usual Access in a Windows environment installed on your Mac.
Another option is to use Parallels Desktop for Mac, a virtual machine capable of running Windows on computers with Mac operating system. There are other options with similar characteristics, as WineBottler, based on the popular Wine or VMWare, which can also be a solution. What they do in essence is the same as the first method: it allows you to use Windows on a Mac and therefore be able to install and use Access, the Microsoft Office database software.