Last War: Survival can create repeated check-ins because progress is tied to upgrades, resources, events, and timed opportunities. The habit is often distributed across the whole day.
Create two or three planned check-in windows instead of reacting to every prompt. Put Last War inside Apple Screen Time App Limits, then track it with Sandflow.
When the session timer reaches your planned limit, stop after finishing the current task. Do not start a new upgrade path, battle, or event step unless it fits the next planned window.