勉強時間の計測

IJ System
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Everyone
1K+
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About this app

This application is made only to measure study time.

It is aimed at analyzing the tendency of my study time and making it useful for learning.

We will use your calendar chart, line chart, regression line to visually express your learning time.
Apps born just to measure study time
Updated on
Sep 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What’s new

沢山のユーザー様に使って頂いていることが分かりましたので、感謝の気持を込めまして、広告表示を全削除しました。
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Content rating
Everyone
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App support

About the developer
山本 篤史
emcc.root@gmail.com
Japan
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