RepeatBox is a free, simple-to-use learning app that combines spaced repetition and active recall based on the forgetting curve.
We hope you will find it useful in various learning situations, such as memorization and review, as a tool to assist memory retention.

Active recall is a learning method that reinforces memory through recall.
Active recall has the effect of strengthening memory and making it harder to forget what you have learned.
Active recall has been concluded as a highly useful learning method based on scientific experiments.
It is a recommended learning method for memorization and review.

The key to active recall is that you’re pulling information out of your memory, without any prompts.
For example, active recall practices include the following
In memorization and review situations, “solving practice problems,” “just writing things down,” “using memorization cards,” and “teaching or imitating teaching someone else” while recalling what you have learned.
This application is just one of the ways to practice active recall.
Let's find the best way to practice active recall for you.

Spaced repetition is a learning method in which a certain study content is studied at intervals rather than all at once.
People forget most of what they have learned after a few days.
It is believed that repeated study at intervals slows down the forgetting curve and makes it easier to retain in memory.
Spaced repetition has been concluded as a highly useful learning method based on scientific experiments.
It is a recommended learning method for memorization and review.

Spaced repetition manages the timing of problem solving according to certain rules.
For example, there is a method to manage the timing of learning along a forgetting curve.
The learning method of memorizing and reviewing according to the learning timing along the forgetting curve is recommended as a method to make it difficult to forget what you have learned: the learning timing is controlled according to the forgetting curve, and the learning timing is controlled according to the forgetting curve.
However, managing the learning timing manually becomes difficult as the number of problems to solve increases.
Therefore, in order to concentrate on learning, it is preferable to automate study management with an application.
RepeatBox has a user-customizable review cycle function, and initially provides a 5-step review cycle based on a forgetting curve.

A simple learning app that combines active recall and Spaced repetition:
RepeatBox is a free, simple-to-use learning app that combines “active recall” and “spaced repetition,” which are scientifically considered to be highly useful learning methods.
The app automates “Spaced Repetition” and helps users to learn more efficiently through memorization and review.

OCR function to extract text from images:
Text can be extracted from images and input into the application effortlessly.
Text from question collections and reference books can be extracted from images.

Study record and analysis function:
Record your study and graph the percentage of correct answers in each area.
It is possible to identify areas of strength and weakness and use this information to adjust the balance of learning.

Data backup function:
Application data such as task and study records can be saved as backup data.
Backup data can be output to the cloud and locally.

Automatic backup function:
Automatic backup to cloud storage is available on a regular basis.
This prevents data loss due to forgotten backups even if the device suddenly malfunctions.

-Review of classes, lectures, etc.
-Language study such as English
-Vocabulary books
-Memorization cards
-Memorization
-Review
-Qualifications
-Study for examinations
-Preparation of summaries and summary of study contents