ME/CFS, no details of how ill, recommending an Android app that worked before

Summary

Posted only one comment in r/cfs, recommending an Android app called Sleeper/Agent that had worked for them in the past. They did not say what it helped with, how long they used it or whether the benefit lasted. They described nothing about their own illness, its onset, how ill they have been or how they are now, so their course and recovery cannot be told.