Free attention calculator
Screen time cost calculator
Turn daily phone use into yearly hours, full days, and a vivid opportunity-cost frame you can actually feel.
Reduce phone time on iPhone
LockHour Pro helps you block distractions and reclaim focused hours.
Screen time cost calculator FAQ
How many days a year is 3 hours of phone time per day?
Three hours per day is 1,095 hours per year, or about 45.6 full 24-hour days.
How do you estimate books I could read?
The calculator uses a rough 6 hours per average book. Your reading speed and book length will vary.
Is screen time always bad?
No. Some phone time is useful. The goal is to notice the cost of low-value scrolling.