Albums do not expire, deletes stay reversible for 30 days, and every file lives in two regions. That's the whole policy; the rest is detail.
On every plan
An event has no end date and no expiry clock. It stays up, with every approved photo, until the host deletes it. Guests keep the same link for as long as the event exists.
The free plan's one rule
On the free plan only, an event nobody touches for about 6 months is warned by email (Your Partyreel event will be removed soon, two weeks ahead), then moved to Deleted, where it can be restored for 30 days. Any activity resets the clock: the host signing in, a new upload, an edit to the event. It exists so abandoned free albums don't sit forever; it never touches an album someone is using, and paid plans are exempt.
The Event Pass
A pass covers its event with 75 GB for about a year from purchase. When it ends without a renewal, the account settles to the free plan and nothing is deleted. If the album is bigger than the free plan allows, there's a 45-day window to renew, upgrade, or make room before the largest files start moving to Deleted. See how long an Event Pass lasts.
Deleted, and gone
Removing a photo or deleting an event moves it to Deleted for 30 days, with a countdown and a Restore button. After that, the file is permanently deleted. Delete permanently skips the wait. See hide, remove, and restore.
Where the files live
Every upload is stored in one region and copied to a second region minutes after it arrives; the album's records are copied nightly. That's the whole durability story: two regions, and deletes that wait 30 days.
Keep your own copy too
The album is a shared, durable home for the photos, and Download all gives you the originals any time. Two copies in two places is a good habit for the ones that matter.