Luminar Neo’s Subscription plan gives you access to the Luminar Neo app, all updates or new versions.
X Membership is a paid subscription for those who already own or subscribe to Luminar and want to take their creativity to the next level. Luminar members enjoy monthly delivery of creative assets, including Luminar Presets, LUTs, and Sky textures. Luminar members who opt for the X Membership plan will also receive at least one tutorial per year.
You can always check available packs in your account under the X Membership tab, or directly from the product Extras -> X Membership.
Important: X Membership doesn't include the Luminar app.