A flashcard management application  based on memory retention levels

Aniki d’Anki

 Simple flashcards

Calculate personalized
memory retention rates

 ​Notify review dates
based on memory retention rate

 Provide an intuitive UI

Download_on_the_App_Store_Badge_JP_RGB_blk_100317

Releasing Aug. 1, 2026 (iOS)

暗記のアニキ アイコン

Memory Retention Model

"Memory retention rate" refers to the probability that a person can recall something they have learned. It is known to decay exponentially as time passes after initial learning. Furthermore, with each review, memory stability increases and the decline in the retention rate becomes more gradual, allowing high memory retention to be maintained over longer periods.

記憶保持率 グラフ

App Learning Workflow

1. Goal Setting for Each Card

Most flashcard apps on the market fail to account for a crucial factor: deadlines. In this app, users specify the target timeframe (number of days) and the desired memory stability level for each flashcard to define completion.

2. Two Review Tests

Once learning begins for a flashcard, the app prompts two review tests at optimal intervals. By analyzing the user's response time during these tests, the app estimates the memory retention rate and calculates how easily each card can be memorized.

3. Personalized Review Schedule

Based on the memorability calculated from the two tests, the app generates a custom review schedule for each card to achieve the target memory stability by the deadline. This enables users to consolidate their memory efficiently with a schedule tailored specifically to them.

App Learning Workflow

Home

ホーム画面 スクリーンショット

Track Learning Progress
Predict Retention Trends & Suggest Review Dates

Cards

フォルダ画面 スクリーンショット

Organize Cards in Hierarchical Folders

Test

復習テスト画面 スクリーンショット

Take Review Tests at App-Suggested Times

Add cards

カード作成画面 スクリーンショット

UI Optimized for High-Volume Card Creation

*All screens shown are under development and subject to change.

<Request for Participation in Our Verification Trial>

This application was developed as part of a senior research project in the Information Systems course at Institute of Science Tokyo High School. We are currently conducting a verification trial for our algorithm, which estimates memory retention rates and suggests review schedules based on existing research. We kindly ask for your understanding regarding the following trial details:

< Verification Trial Overview >
Period: From app launch date to August 31, 2026
Eligible Users: All users
Data Collected: Age and learning progress (test results for designated cards in the app)

All data is collected anonymously and will be used strictly for the purposes of this research.

©2026 東京科学大学附属科学技術高等学校-情報システム分野課題研究-2班
https://ankiniki2026.web.app