GPAブースター - 大学生のGPA管理・成績予測アプリ

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About this app

GPA Booster is a GPA management and grade prediction app for university students.

Simply register the course name, number of credits, and grades to automatically calculate your GPA. Your current GPA, the difference to your target, and the number of credits needed for graduation are all clearly displayed on the home screen.

Assignments and exams are notified with course names, allowing you to manage your grades for job hunting, graduate school applications, and scholarships all in one app. It's free to use (with ads).

■ Recommended for those who:

・Want to know their GPA accurately at all times.

・Want to know which courses to take and what to take next semester to improve their grades.

・Want to manage their grades with job hunting, graduate school applications, and scholarship requirements in mind.

・Want to systematically take the necessary credits for graduation by category.

・Want to receive notifications for assignments and exams in a way that clearly indicates which course they belong to.

■ Main Features

Automatic GPA Calculation
Simply enter the grades and credits of the courses you've taken, and the app automatically calculates your semester-by-semester and cumulative GPA. The grade progress graph allows you to track your progress alongside your target line. Courses that are passed or failed, or certified, are excluded from GPA calculations and only count towards graduation credits.

Grade Prediction Simulator
This simulator instantly predicts "how many more courses you need to get an 'Excellent' grade to achieve your GPA." You can save combinations you're interested in as scenarios for later comparison.

Goals and Achievement Rate
Once you set a target GPA, the achievement rate and the difference to your target are displayed on the home screen. After selecting your goal and grade conversion method during the initial setup, you can start using it immediately.

Graduation Credit Progress
Once you set the number of credits required for graduation, the system compiles the credits you've earned and the remaining credits for each category, such as required and elective courses.

Assignment and Exam Reminders
By registering notification times for assignments and exams for each subject, you will receive notifications in the form of "Subject Name and Assignment Schedule" at that time. Tapping the notification opens the screen for that subject. The "To Do Now" section on the home screen displays your schedule for the next 7 days. A weekly review notification (you can specify the day and time) also shows the number of tasks within the next 7 days.

Bulk Registration from Timetable
You can register all your subjects for an entire semester at once by entering subject names in the day and time slots. You can also copy the subject structure from the previous semester to create a new semester.

Supports Various Grading Systems
Supports S/A/B/C/D, Excellent/Very Good/Pass/Fail, the 4.3 system including A+, and the 4.0 system of A/B/C/D. You can change this at any time from the settings.

Share Cards and Widgets
There are share cards (3 types) that allow you to share your GPA and achievement rate as images with friends, and a widget that allows you to check your GPA on the home screen.

Other Features
• Data backup and restore (useful when changing devices)
• Light/dark theme switching
• "How to Use" and "Update History" in the settings screen
• In-app notifications when a new version is released
■ How to Use

1. In the initial setup, choose the grade conversion method and goal.
2. Register subject names, credits, and grades (you can also register them all at once from your timetable).
3. Check the difference between your GPA and your goal on the home screen, and plan your next semester with the simulator.

■ About Ads, Permissions, and Data

• Ads: Banner ads are displayed at the bottom of the home screen, subject list, and simulator. Full-screen ads are sometimes displayed when saving subjects.
• Notifications: Used to send reminders for assignments and exams, and weekly review notifications.
• Alarms and Reminders: Used to deliver notifications precisely at the specified time (notifications will be received even if permission is not granted).
• Data: Input data such as subjects, grades, and credits are saved on your device, and account registration is not required. Input data is not sent to external servers (we use Google AdMob for ad delivery).

■ Contact Us

Please send your requests and bug reports through the feedback box in the app's settings screen.

We are continuously improving the app based on your feedback to make it easier for university students to manage their grades.
A GPA management app for university students. Simply enter your grades and it automatically calculates your GPA. You can manage everything in one place, including your goal achievement rate, progress toward graduation credits, and notifications for assignments and exams with course names.
Updated on
Sep 24, 2026
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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
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

What’s new

課題や試験の通知に科目名が表示され、GPA管理がさらに便利になりました。

・新機能:通知をタップすると、その科目の画面を開けます
・新機能:新しいバージョンをアプリ内でお知らせします(次回の更新から)
・新機能:設定画面から更新履歴を確認できます
・改善:ホームの「今すべきこと」に、7日以内の課題・試験の予定を表示します
・改善:週1回の振り返り通知で、7日以内の予定の件数をお知らせします
・改善:文章を言葉の切れ目で改行し、読みやすくしました
・改善:シェアカードの共有文にダウンロードリンクを付けました
・改善:ダークテーマの配色を整えました
・修正:学期の切り替えや保存に失敗するとアプリが終了する不具合を修正しました
・修正:リマインダー一覧に通知時刻を過ぎた予定が残る不具合を修正しました
・修正:削除した科目を元に戻しても一覧に表示されない不具合を修正しました

ご要望や不具合のご報告は、設定画面の意見箱からお気軽にお送りください。
いただいたご意見はすべて読んでいます。
すべてを反映できるとは限りませんが、今後の改善の参考にします。