# 勉強ばこ > Simply create a "box" for each subject and press it. It records your study time down to the second, and you can review it against a calendar and total. The records are stored only on your device. Canonical page: [https://chrome-stats.com/d/com.iguchitakuto.studybox](https://chrome-stats.com/d/com.iguchitakuto.studybox) ## Overview - **ID:** `com.iguchitakuto.studybox` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Iguchi Apps - **Category:** EDUCATION - **Downloads:** 2 - **Last updated:** 2026-08-18 - **First published:** 2026-08-18 - **Publisher country:** JP - **Data as of:** 2026-09-24 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.iguchitakuto.studybox) - **Website:** [https://takuto-lab.com/benkyobako/support](https://takuto-lab.com/benkyobako/support) - **Privacy policy:** [https://takuto-lab.com/benkyobako/privacy](https://takuto-lab.com/benkyobako/privacy) ## Description This app records study time for each subject.

You create "boxes" for each subject or learning material. Pressing a box starts the timer. Pressing it again stops the timer, and the counted time is recorded down to the second. That's all there is to it!

■ Counting with a single press
Pressing an empty area of ​​a box starts counting from zero. The timer continues even when the app is closed, and the time remains accurate when you return. A notification remains while counting is in progress, so you'll be reminded if you forget to stop.

■ Recording in seconds
The record is saved in seconds. It doesn't round up to minutes, so both short and long study sessions are recorded exactly as you spent them.

■ Setting daily goals
You can set a daily goal of "X minutes" for each box. You can see your progress immediately, and the goal resets daily. You can leave some boxes without goals if you prefer.

■ Counting by time (timer)
You can also set a time limit and count backwards. It will notify you when you're finished. It only works when you initiate it; it won't start automatically. If you don't use it, you can remove this entry point in the settings.

■ Record Later
You can manually enter any time you forgot to count later. You can also enter data for past dates.

■ View on Calendar
Days you studied are highlighted in darker colors, while days you didn't study remain white. Even a single second of recording will trigger a colored display. The number of consecutive days and the longest consecutive period are also displayed.

■ Total by Period
You can calculate totals for this week, this month, this year, the entire year, and a period of your choice. A breakdown by category is also displayed.

■ Stored Only on Your Device
Records are saved only on your device. No account is required. Backups are manually created and imported.

■ Quiet Operation
Graphs, detailed statistics, rankings, and competition mechanisms are not included. You can set the daily reset time yourself (e.g., 3 AM for night owls). The screen brightness adjusts to your device's brightness settings.

It can be used for recording study progress, self-study, test preparation, exam preparation, and time management for qualification studies. ## Rankings - #3,138,966 — Overall ## Similar extensions and apps - [勉強時間 記録](https://chrome-stats.com/d/tokyo.yuz.study_time) — 2,231 users - [科目別勉強タイマー-学習時間記録アプリ](https://chrome-stats.com/d/com.stella.study_timer) — 154 users - [勉強時間記録帳：Study Gauge](https://chrome-stats.com/d/jp.makotsait.tka.study) — 37,927 users - [学習時間](https://chrome-stats.com/d/tokyo.sinagawa.learning_record) - [勉強したよ](https://chrome-stats.com/d/fm.veritascell.benkyoushitayo) — 3 users - [シンプルな勉強時間記録アプリ](https://chrome-stats.com/d/com.to.studytimetracker) — 764 users - [solo -学習記録アプリ-](https://chrome-stats.com/d/com.dobby29.solo) — 29 users - [시간의 기록 - 공부 & 작업 타이머 시간 기록](https://chrome-stats.com/d/com.einsart.timeloggern) — 2 users - [勉強タイマー](https://chrome-stats.com/d/jp.gr.java_conf.timer5000time) — 67 users - [勉強（練習）時間管理のための累積時間レコーダー](https://chrome-stats.com/d/jp.aa1.AccumulatedTimeRecorderA) — 134 users - [勉強時間の計測](https://chrome-stats.com/d/tokyo.confeito.studywatch) — 3,015 users - [StudyDay: Pomodoro Timer & Log](https://chrome-stats.com/d/kr.co.junu.studyday) — 367 users --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.iguchitakuto.studybox)