How does server app pricing work?
JMWE, just like any other JIRA server products and apps, is hosted on your servers. The license is perpetual and the purchase price includes 12 months of maintenance (support and version updates).
You can renew maintenance after 12 months at 50% of the current purchase price. You can upgrade the tier of your host product and JMWE licenses at any time. If JMWE pricing changes after your initial purchase, there's a 60-day grandfathering period during which you can renew based on the old pricing.
Can I extend my free trial?
For JMWE, just like all server apps, you can extend your trial up to 5 times - in other words, for up to six months. Extend your trial by generating a new evaluation license key from Atlassian Marketplace. Click "Try it free" and you'll be directed to generate a new license. Paste this license key into the JMWE add-on listing in UPM from your Atlassian host application, and you're all set.