Quick answers to common questions about Maia Mechanics Imaging (MMI), our Windows charting software. Each answer links to a full article if you need more detail.
What is MMI, and what's new in Version 3?
MMI is our Windows desktop charting software, fully rebuilt in 2025 for modern Windows. See What's new in MMI Version 3? for chart types, features, editions, and languages.
Can I use MMI on a Mac?
MMI runs on Windows only, but Mac users have options. See I have a Mac, can I run MMI?
How do I install MMI and activate my license?
Download MMI from the portal, retrieve your key from the Licenses tab, and activate it in the app. See How do I install MMI and activate it with my product key?
How do I upgrade to Version 3?
If you already own MMI, upgrading to Version 3 is free. See How do I upgrade to MMI Version 3?
Where do I get my activation key after purchase?
Your download link and activation key are in your account at mmi.jovianarchive.com (the Licenses tab), and you'll also receive them by email.
MMI stopped working — what do I do?
Most issues are fixed by reinstalling or clearing corrupted preferences — see MMI stopped working. If your key won't activate, see My MMI activation key doesn't work.
What is the BG5 Business Edition?
It's MMI's top edition, available to people enrolled in BG5 training. See What is BG5, and where do I get it?
Is MMI offline? Are there subscriptions?
MMI works fully offline and is a one-time purchase — no subscriptions or renewal fees. Your activation key works on up to 2 devices.
Do you offer refunds?
Yes — we offer a 30-day, no-questions-asked money-back guarantee on every order, including MMI Desktop. See Can I get a refund?
What can I do with the free trial?
The free trial unlocks all Professional Edition features for 7 days, so you can confirm MMI works on your system before buying.