Flashcards designed so you never forget a word.
Type a word and its translation. memrai creates the full flashcard — mnemonic story, image, pronunciation, and audio — then schedules your reviews so it sticks for good.
- 15 free credits to start
- 120+ languages
Flasche
/ˈflaʃə/
"Flash! The glass bottle flashes under the streetlight"
Memory hook
flash
Mnemonic story
the bottle flashes
Review schedule
1d → 3d → 8d
Three steps to vocabulary that lasts
Simple by design. You add the words, we handle the rest.
Add your words
Create a deck, pick your languages, and add the words you want to learn. Drop in a keyword hint if you have one.
AI builds the cards
Each word gets a mnemonic story, a generated image, audio pronunciation, and a pronunciation guide. One credit per card.
Show up daily
Spaced repetition handles the timing. Open the app, review what’s due — five minutes a day is enough.
What the cards include
Everything you need to remember a word, on a single card.
All-in-one
A complete study card, generated in seconds
From a single word, memrai generates a mnemonic keyword, a vivid story, a matching image, audio, and pronunciation guide. Everything assembled into one reviewable card.
“Flash! The glass bottle flashes under the streetlight”
Scheduling
Smart review scheduling
Powered by FSRS, a research-backed algorithm that adapts to how you learn. Struggling with a word? You’ll see it sooner. Know it well? It backs off automatically.
Coverage
120+ language combinations
Choose your base language and your target language. The mnemonic stays anchored in the language you already think in.
Practice modes
Tap or type — you choose the challenge
Quick review? Tap to reveal the answer. Want deeper practice? Type it out letter by letter to force yourself to truly recall it.
Tap to reveal
Flasche
bottle
Type the answer
bottle → ?
Why it works
Three research-backed principles behind every card.
The method combines three principles from learning science: vivid images that make words memorable, active recall that strengthens memory, and spaced review that keeps it permanent.
Mnemonic encoding
A vivid image makes new words easier to remember
In a landmark study, learners who paired new words with vivid images and keyword stories remembered significantly more — both right away and 43 days later. That's why every memrai card pairs your word with a memorable image and story instead of a plain translation.
Right after learning
with mnemonic images
43 days later
long-term retention
Recall and timing
Active recall plus spaced review builds lasting memory
Lasting learning happens when you actively try to remember, check your answer, and review again at the right time.
Retrieval practice
Actively recalling a word strengthens memory more than just re-reading it.
See the cue
Try to retrieve the word
Reveal and correct
Spacing evidence
Spreading reviews over time leads to stronger long-term memory than cramming.
317
experiments show spreading out reviews beats cramming
3,411
language learners studied in spaced-review research
98
studies confirm spaced review works for new languages
Smart scheduling
Like an intelligent study assistant — schedules reviews based on your learning patterns.
Target retention
When you remember well, the time between reviews gets longer.
Selected sources
The research behind these features spans five decades — from mnemonic keyword studies in the 1970s to modern scheduling algorithms. Tap any paper to read the original.
Atkinson et al. (1974)
An Application of the Mnemonic Keyword Method to the Acquisition of a Russian Vocabulary
Cepeda et al. (2006)
Distributed Practice in Verbal Recall Tasks: A Review and Quantitative Synthesis
Bahrick et al. (1993)
Maintenance of Foreign Language Vocabulary and the Spacing Effect
Kim et al. (2022)
The Effects of Spaced Practice on Second Language Learning: A Meta-Analysis
Ye et al. (2022)
A Stochastic Shortest Path Algorithm for Optimizing Spaced Repetition Scheduling
Straightforward pricing
One credit, one flashcard. Start free, upgrade anytime.
Free
Light monthly practice
15 credits/month
- Spaced Repetition Scheduling
- Community Support
- Includes Ads
Starter
Steady weekly progress
60 credits/month
- Spaced Repetition Scheduling
- Email Support
- Ad-Free Experience
Pro
Daily, focused study
250 credits/month
- Personalized Spaced Repetition
- Advanced Statistics
- Priority Upgrade Queue
- Ad-Free Experience