RevoMemo launches in June 2026

RESEARCH-BASED LEARNING

Memory isn’t magic.
It’s a method.

RevoMemo is built on four decades of research. Every flashcard, every review, and every decision in the app stems from science—not intuition.

~92%
Words remembered after 30 days*
Faster than massed learning
9
Key scientific concepts

* Based on internal SRS model simulations.

Spaced repetition effect

20%40%60%80%100%1234567Days have passedPreserved knowledgeFirst learningFirst reviewSecond review

Fig. 2 - Spaced repetition slows down the forgetting process

Memory mechanics

Why you don’t forget after a week

It's not about how many times you see something. It's about when you come back to it.

What's happening in practice

Day 0 → you learn the word

Day 1–2 → you start forgetting

Review → memory returns to ~100%

Another repetition → you forget more slowly

After a few cycles → the word moves to long-term memory

Why does this work

That's why after 30 days you remember ~92% of words — not because you learn more, but because you learn at the right time.

See for yourself and check the pricing tailored to your needs.
No repetitions

You'll lose most of the knowledge within a few days

With spaced repetition

Memory stabilizes at a high level. Each repetition "resets" the forgetting curve.

Test the flashcard and check how the app works.
0%25%50%75%100%Day 0Day 7Day 14Day 21Day 30
Forgetting curve
Spaced repetition (SRS)

Fig. 1 — Ebbinghaus' forgetting curve vs. retention through SRS

01 WHY THIS WORKS

Evidence-based learning.

RevoMemo combines cognitive science, linguistics, and memory psychology into a single, cohesive learning system.

1

Spaced repetition (SRS)

Research on the forgetting curve (Hermann Ebbinghaus) proves that information is best retained when reviewed at increasingly longer intervals. RevoMemo automates this process with the FSRS-6 algorithm, which outperforms older models in retention prediction.

2

Active recall

Instead of passive reading, RevoMemo forces the brain to actively retrieve information. This strengthens neural connections far more effectively than traditional methods.

3

Contextual learning

Cognitive linguists confirm that words learned in natural sentence contexts result in deeper encoding and are far less likely to be forgotten (Laufer & Hill, 2000). That’s why context—created by you—is central to RevoMemo.

Discover innovative features that help you create this context.

Neuroplasticity

Regular use of our system stimulates brain neuroplasticity, building neural connections responsible for language fluency. Algorithms are continuously refined based on anonymous data from thousands of sessions.

"The distributed practice effect is one of the most replicable phenomena in cognitive psychology."

Cepeda et al., 2006 — Psychological Bulletin, Vol. 132(3)
02 Effect Size (Cohen’s d)

In numbers.

Cohen’s d effect sizes gathered from meta-analyses.
The "d" values show how much impact a method has on learning outcomes—regardless of study scale. The higher the value, the greater the real difference in retention between methods.

Spaced Repetition
d = 1.14
Retrieval Practice
d = 0.96
Contextual Encoding
d = 0.86
Dual Coding (Audio)
d = 0.71
Self-Reference Effect
d = 0.64
Emotional Context
d = 0.52

d is a measure of effect size (Cohen’s d): 0.2 small, 0.5 medium, 0.8+ large effect.

03 Key Literature

Evidence base.

Selected studies that form the scientific foundation of RevoMemo. Each discovery directly translates into features in our application.

Still have doubts about how it works? Find answers in the FAQ section.
Spaced Repetition

Distributed practice in verbal recall tasks: A review and quantitative synthesis

A meta-analysis of 254 studies showed that spaced repetition significantly outperforms one-time learning (averaging ~47% retention with spaced repetition vs. 37% with massed learning). The largest effects were observed in vocabulary learning.

Cepeda, Pashler, Vul, Wixted & Rohrer
Psychological Bulletin, 132(3), 354–380
2006
FSRS-6 Algorithm

A Stochastic Shortest Path Algorithm for Optimizing Spaced Repetition Scheduling

FSRS-6 is a spaced repetition optimization algorithm based on stochastic shortest paths. Internal data from Open Spaced Repetition suggests it outperforms the SM-2 model (Anki) in predicting retention outcomes.

Ye, Su, Mercer et al.
Proc. of the 28th ACM SIGKDD
2022
Contextual Encoding

What lexical information do L2 learners select in a CALL dictionary and how does it affect word retention?

Learning words in a natural context (within sentences) with access to additional information, such as translations, enables deeper semantic encoding and leads to significantly better retention than decontextualized word pairs.

Laufer & Hill
Language Learning & Technology, 3(2), 58–76
2000
L1 Anchoring

Non-incidental vocabulary learning by foreign language learners

Linking a foreign word to its translation in the native language facilitates the construction of semantic networks. This additional semantic anchor supports vocabulary recall.

Hulstijn
Studies in Second Language Acquisition, 15(2)
1993
Retrieval Practice

Test-Enhanced Learning: Taking Memory Tests Improves Long-Term Retention

Research shows significant benefits of active recall (testing) compared to passive rereading. In the long term, testing leads to substantially higher retention rates.

Roediger & Karpicke
Psychological Science, 17(3), 249–255
2006
Double Encoding

Working Memory

According to the dual-coding theory (Paivio) and the phonological loop (Baddeley), simultaneously reading and listening to a word creates an additional memory trace, making it easier to retain.

Baddeley
Oxford University Press
1986
Self-Reference Effect

Self-Reference and the Encoding of Personal Information

Self-referential content is remembered significantly better than neutral material. Personalizing information leads to a stronger memory trace.

Rogers, Kuiper & Kirker
Journal of Personality & Social Psychology, 35(9)
1977
Emotional Memory

Beta-adrenergic activation and memory for emotional events

Emotionally engaging content activates the amygdala during encoding, leading to stronger memory consolidation. Matching sentences to personal preferences may enhance this mechanism.

Cahill, Prins, Weber & McGaugh
Nature, 371, 702–704
1994
Vocabulary Load

Learning Vocabulary in Another Language

Mastering around 3,000 of the most frequently used word families provides understanding of approximately 95% of everyday text. The ~7,777-word corpus in RevoMemo extends this coverage to professional registers.

Nation
Cambridge University Press
2001

How does RevoMemo work — It ties everything together.

Spaced repetition Cepeda Active recall Roediger Context Laufer Frequency Nation
04 RevoMemo Loop

Learning at every step.

From generating the first flashcard to its review — every decision is based on memory research.

01
AI-Generated

Sentence built around your interests

→ Effect of self-reference
02
L1 Anchoring

Known word woven into a learned sentence

→ Semantic anchor L1
03
Audio Playback

Sound activates additional perception channels

→ Dual Coding
04
Active Recall

Desirable Difficulty — Struggle Strengthens Memory

→ Testing Effect
05
FSRS-6 Schedule

Next Review Matched to the Curve

→ Optimal Spacing
Bibliography

[1] Cepeda, Pashler, Vul, Wixted & Rohrer. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354–380.

[2] Ye, Su, Mercer et al.. (2022). A Stochastic Shortest Path Algorithm for Optimizing Spaced Repetition Scheduling. Proc. of the 28th ACM SIGKDD.

[3] Laufer & Hill. (2000). What lexical information do L2 learners select in a CALL dictionary and how does it affect word retention?. Language Learning & Technology, 3(2), 58–76.

[4] Hulstijn. (1993). Non-incidental vocabulary learning by foreign language learners. Studies in Second Language Acquisition, 15(2).

[5] Roediger & Karpicke. (2006). Test-Enhanced Learning: Taking Memory Tests Improves Long-Term Retention. Psychological Science, 17(3), 249–255.

[6] Baddeley. (1986). Working Memory. Oxford University Press.

[7] Rogers, Kuiper & Kirker. (1977). Self-Reference and the Encoding of Personal Information. Journal of Personality & Social Psychology, 35(9).

[8] Cahill, Prins, Weber & McGaugh. (1994). Beta-adrenergic activation and memory for emotional events. Nature, 371, 702–704.

[9] Nation. (2001). Learning Vocabulary in Another Language. Cambridge University Press.