Your Language
Portfolio,
Optimized.
A scientific algorithm manages your memory assets. 10 minutes a day — minimum effort, maximum retention.
Free · No credit card required · 300 memory slots included
Total Memory Assets
2,847
Retention Rate
87.3%
7-DAY PERFORMANCE
TODAY'S REVIEW
Investor Grade
Sprout
STABILITY
+12.4%
LONG-TERM
847 words
0000+
Word Database
0 Languages
Supported
0%
Avg. Retention Rate
0 min/day
Average Session
How It Works
Invest. Optimize. Grow.
Start Your Investment
Choose your target language, meet your first words. No configuration needed — start immediately.
AI Operates Your Assets
FSRS engine tracks each word's forgetting curve and automatically schedules reviews at the optimal moment.
Watch Assets Grow
10 minutes daily: short-term → mid-term → long-term memory. Your cognitive assets stabilize and compound.
Core Features
Built Different. Built Smarter.
FSRS Auto-Optimization
The power of Anki, zero configuration.
Each word gets individual tracking: stability, difficulty, next review date. The algorithm self-evolves with every response you give — no manual tuning needed.
7+
Parameters/word
3
Instances
0
Config needed
Memory Slots
Every word gets a dedicated seat.
Words inside a slot receive full management: FSRS scheduling, daily review queue, growth tracking, AI operations. Your cognitive assets under professional care.
300
Free slots
∞
PRO slots
Full
Management
Investor Grades
From Seed to Legend — a 5-year path.
10-tier progression system spanning 5 years. Plant growth → Metal ranks → Gem ranks → Title ranks. Not a streak counter — a genuine long-term growth journey.
10
Total tiers
5 yrs
Span
~1 wk
First rank
AI Operations Dashboard
Fintech-grade analytics for your memory.
Asset status reports, 7-day performance charts, deep AI analytics. See your cognitive portfolio like a financial dashboard — classified by memory state and risk level.
AI
Report type
3
States
Real-time
Update
The Science
Forgetting Has a Pattern.
We Predict It.
Ebbinghaus Forgetting Curve
Without intervention, you forget ~80% of new information within 30 days. This isn't a flaw — it's how human memory works. The key is knowing exactly when to review.
FSRS: Free Spaced Repetition Scheduler
A peer-reviewed algorithm that calculates optimal review timing for each individual word. Tracks stability, difficulty, and retrievability — then schedules reviews right before you forget.
Self-Evolving Engine
Three independent FSRS instances: Global scheduling, Receptive (listening/reading), and Productive (speaking/writing). Each adapts to your individual performance pattern.
Pricing
Start Free. Scale When Ready.
Full FSRS algorithm access on the free plan. Upgrade only when you need unlimited capacity.
Free
Everything you need to start
- Memory Slots — 300 (200 base + 100 bonus)
- Daily Cards — 30 / day
- Languages — 1 at a time
- FSRS Algorithm — Full access
- Practice Mode — Unlimited
- Investor Grades — All 10 tiers
PRO ●
Unlimited cognitive asset management
- Memory Slots — Unlimited ∞
- Daily Cards — Unlimited
- Languages — Up to 3 simultaneously
- FSRS Algorithm — Full access
- AI Dashboard — Asset reports & analytics
- Deep Analytics — AI predictions & insights
- Auto-enrollment — Slot-less words auto-managed
- Priority Support — Dedicated assistance
Launch special: Lifetime access from $59 — limited early adopter offer
FAQ
Frequently Asked Questions
Yes. The Free plan includes 300 memory slots, 30 daily review cards, full FSRS algorithm access, and all 10 investor grades. No credit card required. PRO unlocks unlimited slots, AI dashboard, and deep analytics.
FSRS (Free Spaced Repetition Scheduler) is a peer-reviewed, open-source algorithm that calculates the optimal review timing for each word individually. It tracks stability, difficulty, and retrievability — scheduling reviews right before you forget. Think of it as the most scientifically advanced version of spaced repetition.
At launch, Daywika supports English and Japanese as learning targets, with Korean as the primary UI language. More languages will be added based on user demand. The FSRS algorithm works universally across any language.
Duolingo uses gamification-heavy engagement (streaks, XP, characters). Daywika takes a data-driven, fintech-inspired approach: scientific algorithm (FSRS), cognitive asset management, and constructive anxiety through real metrics. Less fun decorations, more actual retention results.
Yes. Your learning data is encrypted and stored securely. We don't sell personal data to third parties. Check our Privacy Policy for full details on data handling and your rights.
Core review functionality works offline — your daily review queue is available without internet. Syncing, AI dashboard, and some analytics features require a connection. Full offline mode is on our roadmap.
Your Memory Is Losing Value.
Defend It Now.
Every day without systematic review, your cognitive assets depreciate. Start defending with 10 minutes a day — completely free.
Free · 300 memory slots · Full FSRS access · No credit card