If you are offline for a long time, e.g. on an expedition in the wilderness, and your subscription expires, nothing happens.

Your subscribed app stays as it is with all subscribed features. When you get back, the app gets online and it finds out your subs expired, it gives you a grace period long enough to re-subscribe comfortably.

Synchronization of the user's data - tracks, routes and points - with the cloud and web library at web.locusmap.app is a major part of the Premium Gold subscription.

If you decide to cancel the subscription or subscribe to a lower plan, your data will remain preserved on the cloud. When you re-subscribe to Premium Gold, you can use the data again. At the moment there is no time limit for keeping your data safely stored.