MonoStudy
Vocabulary / SRS

Learn with the forgetting curve,
simple flashcards.

Just swipe to mark "got it / forgot it." An SRS (spaced repetition) algorithm based on the forgetting curve serves the words you should review next, at the optimal time. Open it in your browser; no sign-up, start memorizing today.

Use flashcards free → See how it works
No sign-up to startSRS for efficient reviewFree up to 50 cards
Features

Flashcards that let you focus on remembering.

Create, flip, review. Just the actions memorization needs, in the fewest steps.

Swipe to self-assess

Flip a card and record "got it / forgot it" with a swipe. Keep a brisk rhythm going.

Served by the forgetting curve (SRS)

The next review date adjusts automatically based on how you did. Cards appear just as you're about to forget, boosting retention.

Sort with tags

Sort words by tag — vocabulary, terms, exam prep — and manage them efficiently.

Sync on any device

Cards you create are saved automatically. Log in and review the same deck from where you left off across devices.

How it works

Three steps to use it

  1. Add a wordEnter the front (question) and back (answer) to create a card.
  2. Swipe to judgeFlip the card; swipe right if you remember, left if you forgot.
  3. SRS serves the next reviewBased on the forgetting curve, review cards are served automatically at the optimal time.
Open flashcards →
FAQ

Frequently asked questions

What is the forgetting curve (SRS)?
People forget over time (the forgetting curve). SRS (spaced repetition) is a method that repeats reviews right as you're about to forget, so you commit things to long-term memory in fewer repetitions. MonoStudy's flashcards serve reviews automatically with this mechanism.
How many cards can I use for free?
For free you can register up to 50 cards and 3 tags. To go beyond the limits, Premium (¥280/month) makes words and tags unlimited.
Do I need to install an app?
No. Open it in your browser and use it anonymously right away. On a smartphone, add it to your home screen to launch it like an app.
Related

Use it together with

Study timer

Time spent memorizing is recorded automatically too.

Learn more →

Goals & habits

Make reviewing a habit with streaks.

Learn more →

Stats & visualization

Check accuracy and study volume with charts.

Learn more →

Start memorizing today.

No sign-up. Open it and flip.

Use flashcards free →