Start with your computer, not your credit card. Topaz's published minimums for the desktop apps are 16 GB of RAM (your computer's short-term memory — what runs out when too much is open) and, on Windows, a dedicated graphics card with at least 6 GB of its own memory; the newer models that invent detail want 8 GB. Topaz Video doesn't run on Intel Macs at all, and each app wants roughly 30 to 70 GB of free disk space.
Everything Topaz sells today is a subscription, monthly or yearly, renewing automatically. The buy-it-once-and-own-it-forever licences the company was known for were discontinued in September 2025 — an existing one keeps working, but you can't buy one now. Individual apps and the all-apps bundle are priced by the year, and monthly billing costs noticeably more. Topaz discounts often and deeply, so check the price on the day you buy.
There's no free trial of the current apps, which is unusual for software this dependent on your hardware. Topaz's published refund policy gives a money-back window of about two days from purchase, and its support staff have described that as the deliberate substitute for a trial. Two more things to check before you click: an annual plan can't be cancelled mid-term without a fee, and some plans advertised at a monthly price are still a twelve-month commitment. Topaz does still host its discontinued older apps — Photo AI, Gigapixel AI, Video AI and others — and its documentation says these "function as trial software by default"; the docs don't say what that mode restricts, and posts on Topaz's own forum describe trial output carrying a visible stamp, so expect some limit of that kind. They are no longer developed or supported, so treat them as a look, not a substitute.
If your machine can't meet the specs, the browser version is the way around it. Topaz says it renders "regardless of hardware," with the work done on its servers instead of your graphics card — image plans there are a monthly subscription. Video in the browser is sold with credits (the platform's unit of spend — each thing you make costs some) rather than flat use.