Ebbing: Spaced Repetition
Forgetting Curve Study Planner
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Review at the right time, before you forget. Just log what you studied, and Ebbing uses the forgetting curve to set your next review date automatically.
Ebbing is a study app that keeps a record of what you've studied and tells you the best time to review it, based on the forgetting curve.
Just log your daily study in a simple interface, and Ebbing builds your review schedule automatically.
You can see at a glance what to review, and when.
No more wasting time on unplanned studying.
Ebbing helps what you learn stick.
◇ Key Features
• Log what you study, and get a review schedule generated automatically from the forgetting curve
• A Home screen that shows today's reviews at a glance
• A calendar to see and adjust all your upcoming reviews
• Statistics: estimated retention rate, a study heatmap, and your study streak (Ebbing Plus)
• Custom review intervals (Ebbing Plus)
• Schedule editing — drag a review to a new date, and shift the reviews after it along with it (Ebbing Plus)
• Review reminder notifications
• Guide articles on evidence-based study methods
◇ Made For
• Planning your study for certification exams and entrance exams
• Vocabulary review cycles in language learning
• Anyone who wants new knowledge to really stick
• Anyone who wants to review efficiently, before they forget
◇ How It Works
Ebbing is built on the "forgetting curve," first described by the psychologist Hermann Ebbinghaus.
It models how people forget, and helps strengthen memory by spacing your reviews at appropriate intervals.
The retention rate shown in the app is an estimate based on this model, not a measurement.
◇ Ebbing Plus (optional auto-renewable subscription)
Ebbing Plus removes the limit on the number of materials and unlocks custom review intervals, schedule editing, and statistics.
Monthly and yearly plans are available, and the price is shown on the purchase screen. You can cancel your subscription anytime in your App Store account settings.
Terms of Use: https://ebbing-app.web.app/en/terms.html
Privacy Policy: https://ebbing-app.web.app/en/privacy.html
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• Calendar and Stats now follow your iPhone's First Day of Week setting (Settings > General > Language & Region), so weeks can start on Monday.
• Bug fixes and stability improvements.
The developer, Munehito Kamura, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- User Content
- Identifiers
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Munehito Kamura
- Size
- 29.5 MB
- Category
- Education
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Ebbing Plus (Yearly) $29.99
- Ebbing Plus (Monthly) $4.99
- Copyright
- © 2025 kam_labz