Table 2.

LETSGO Application Content

Sections	Contents
Contact Information	Telephone number and the nurse’s hours of availability for contact
Disease Information
Treatment	Information, illustrations, videos
Signs of Recurrence
Late Effects
Lifestyle Advice
Physical Activities	Information, illustrations, videos
Relaxation Activities
Smoking Cessation	Information
Nutrition
Activity
Exercises	Suggestions for exercise programs of various levels with illustrations and videos
Goal Setting	Participant-reported activity goals for selected activities (minutes)
Activity Graphs	Display of activities performed (days and weeks), manually logged by the participants
Patient Forms
Daily Walking Steps	Steps counted by activity tracker, manually logged by the participants
Minutes Spent on Activitiesa	Registration of activities (minutes)
Symptom Scoresb	Questionnaire with 10 recurrence-specific questions, each rated by participants as “Not at All,” “A Little,” “Quite a Bit,” and “Very Much” Alarm and instruction to call the study nurse (telephone number provided in the app) if the answers indicate recurrence based on a predefined algorithm and threshold

^aThe app provided a weekly reminder to register activity

^bThe app provided a monthly reminder to submit the questionnaire