If you specifically want the Desktop version (the software installed on your computer), the process is different.
: QuickBooks Pro allows multiple users to access the software simultaneously. During the free trial, you can test out multi-user access and see how it works for your business. quickbooks pro free trial
Instead of the expensive "Plus" or "Advanced" tiers, start a trial for "Simple Start." It is the cheapest tier ($15–$30/mo usually) and lets you track income and expenses. You can upgrade later easily. If you specifically want the Desktop version (the