Nenrin is a flashcard app built around FSRS spaced repetition, a scheduling method that adjusts review timing to how well each card is remembered. Cards and review data are stored locally on the device. It suits students, language learners and anyone memorizing facts who wants a focused review tool. You create flashcards, review them on the schedule the app sets, and keep your study data on your own device.
Local-first flashcards with FSRS spaced repetition for studying and memorizing material.
What you can do
Create flashcards and review them with FSRS spaced repetition.
Keep cards and review data stored locally on your device.
Open the app in its own standalone window.
Publisher / site
parmsam.github.io
Category
Education
Platforms
Web
Languages detected
en
APP PREVIEWS
See Nenrin before you open it.
Browse the available app previews. Select any image to open a larger view.
BEST FOR
Decide whether Nenrin fits your needs.
Useful for
Create flashcards and review them with FSRS spaced repetition.
Keep cards and review data stored locally on your device.
Open the app in its own standalone window.
Before you choose
Available on Web
The installed identity is derived from the start URL instead of an explicit manifest ID.
INSTALL GUIDE
Install Nenrin from its official site.
1
Open the official web app
Use the Open site button above in a current version of Chrome, Edge or Safari.
2
Choose the browser install action
Select Install app, or use Add to Home Screen from the browser share or main menu.
3
Confirm and launch
The installed app opens from the device launcher. Browser and platform support can vary.
PWA AUDIT
How well does Nenrin work as an installed app?
The product overview above helps you choose the service. This independent technical section checks its install experience, browser integration and current PWA signals.
CAPABILITY REPORT
Detected web app capabilities.
DeclaredDetectedVerifiedNot found
declared
Standalone app window
Requests the “standalone” display mode when launched.
experience
not found
Advanced window modes
Declares preferred window modes beyond the basic display setting.
experience
not found
Preferred orientation
Requests a preferred device orientation.
experience
not found
Custom launch behavior
Controls how repeated launches reuse or create app windows.
experience
detected
Service worker detected
Registration appears in the page source; offline behavior still needs a runtime test.
experience
not found
App shortcuts
Offers quick actions from the installed app icon.
integration
not found
Share target
Can receive content from the operating system share sheet.
integration
not found
File handlers
Can register supported file types with the operating system.
integration
not found
Protocol handlers
Can open supported custom link protocols.
integration
not found
Related native app
Links the PWA to a related application on another platform.
integration
declared
4 install previews
Screenshots can be shown in richer installation prompts.
presentation
declared
Adaptive Android icon
A maskable icon can fill different launcher icon shapes.
presentation
not found
Monochrome icon
Provides a themed single-color icon for supported surfaces.
presentation
APP IDENTITYComputed from start URLhttps://parmsam.github.io/nenrin/
