リタス - 大学の課題・時間割・出席

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About this app

LETUS and CLASS, all on one smartphone.

LITAS is an app that combines Tokyo University of Science's LETUS (assignments and deadlines) and CLASS (timetable, attendance, and notices) into one app.

It's an app for Tokyo University of Science students to check assignments, timetables, attendance, and notices on their smartphones.

It notifies you of assignment deadlines, attendance registration start dates, and new notices.

This is an unofficial student project of Tokyo University of Science.

― Assignments ―
Collect and track before the deadline

・Automatically collects assignments for your courses and lists them in order of deadline. You can see at a glance whether assignments are unsubmitted or submitted.

・Reminder notifications 24 hours → 3 hours → 1 hour before the deadline, and a daily summary notification.

・Reminder notifications stop once submission is detected.

・Manually add assignments that are not automatically listed. Edit deadlines and submission status

― Timetable ―
Automatically imports from CLASS, reflecting actual progress

• Automatically imports course schedules. Supports semester changes.
• Bi-weekly classes and self-registered appointments are displayed on the same screen.
• For semester courses stacked in the same time slot, switch display by specifying first or second half.
• Assignments are linked using course codes. One tap to access the corresponding LETUS course from the class schedule
- You can register cancellations, make-up classes, and classroom changes as schedules for each class, and receive notifications the day before and on the day of the class (we will suggest options from the bulletin board).

- Attendance -
Never miss registration or attendance status
- You will be notified when registration begins and before class
- You can check registration status and remaining time at a glance within the app
- Displays attendance breakdown by subject and the estimated "failing line"

- Bulletin Board -
Don't leave unread messages
- You can view CLASS bulletin boards, including the main text and attachments, within the app
- New messages will be notified by push notifications
- Manage read status and flags (to read later) within the app. You can also see whether there are unread messages from the subjects in your timetable.

- Other Features -
- Home screen widget: Today's timetable and recent assignments on the home screen
- Dark mode: Links to your device settings. Manual pinning is also possible.
• Materials & Syllabus: PDF materials and syllabi are formatted and displayed within the app.
• Campus Information: Shortcuts to libraries and train station timetables for each Tokyo University of Science campus. Favorite registration is also available.

― Regarding Money ―

There are no charges for features that provide access to university information — viewing and receiving notifications for assignments, timetables, attendance, and bulletin board announcements.
Currently, there are no in-app purchases or advertisements.

― Privacy ―

• Information collection from LETUS and CLASS will not begin until you agree to the Terms of Service.
• Collected data is stored on your device. It is not automatically sent to the developer's server.
• Only when you submit a bug report yourself via "Send Feedback" will the entered content and a record of your actions be sent to the developer's server. Before sending, you can review the full message on the screen.
* Received reports are also notified to the Discord developer channel so developers can be aware of them (report type and target function, first 200 characters of the comment (full text for reports under 200 characters), app version, OS, and reply email address).
* Login passwords are not read or saved.
* Grades are not accessed.
* No advertising or usage analytics SDKs are included. Ad IDs and device IDs are not collected.
* The app only communicates with LETUS and CLASS (including the university's login infrastructure), instruction files for disabling functions, and the bug report destination (api.waiteu.dev).
* All saved data can be deleted at any time from the settings. LETUS and CLASS login status will also be removed.

― About this app ―

This app is developed and operated by a student of Tokyo University of Science.

It is not affiliated with Tokyo University of Science, LETUS, or CLASS.

This is not an official university app, so please refrain from contacting the university regarding this app.

For bugs or requests, please contact the developer.

— Links —

Privacy Policy: https://litus.waiteu.dev/app-privacy
Terms of Service: https://waiteu.dev/litus/terms
Development History: https://lms.waiteu.dev/updates
PC Version (Chrome / Edge Extension): https://lms.waiteu.dev/
An unofficial app for Tokyo University of Science students. It brings together LETUS assignment deadlines, CLASS timetables, attendance records, and announcements all on your smartphone.
Updated on
Oct 8, 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.
  • This app may share these data types with third parties
    Personal info, App activity, and App info and performance
  • This app may collect these data types
    Personal info, App activity, and App info and performance
  • Data is encrypted in transit
  • You can request that data be deleted

What’s new

お祝いデザインを追加しました。東京理科大学の名誉教授の受賞を祝う表示で、起動画面とホームの最上段が変わります。右上の×で閉じられ、設定の「表示」でいつでもオフにできます。今年いっぱいの期間限定です。リタスは東京理科大学の公式アプリではありません。
利用規約を版7に更新しました。更新後の初回起動で、あらためて同意をお願いする画面が一度だけ出ます。
Content rating
Everyone
Learn more

App support

Phone number
+817038497954
About the developer
WAITEU
contact@waiteu.dev
1-10-8, DOGENZAKA SHIBUYA DOGENZAKA TOKYU BLDG. 2F.-C SHIBUYA-KU, 東京都 150-0043 Japan
+81 70-3849-7954