Study Time Memo: Subject Log

■ About Study Time Memo
A simple notebook for logging your study time by hand. Register your own subjects and enter the minutes each time you study. No timer, no GPS.

■ Features
- Register any subject (name, emoji, color)
- Log study time in minutes, entered manually
- Add a date and a short note
- See your weekly total at a glance
- Per-subject totals and ranking
- Day streaks to visualize consistency
- Weekly study-time chart
- Home screen widget showing this week's study

■ Who it's for
- Students preparing for exams or certifications
- Anyone balancing time across subjects
- Building a daily study habit
- People who prefer simple manual logging

■ Privacy
Everything is stored on your device. No account or connection required. You can export your data as CSV.

■ Note
This app is a tool for recording study time. It does not guarantee better grades or learning outcomes. All subject names and data shown are samples.