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PRODUCT 02 • LANGUAGE IMMERSION & RETENTION ENGINE

Master Real Languages from Authentic Media.
Video Sync, Subtitles & Spaced SRS.

Ditch repetitive cartoon games and synthetic drills. Nativra transforms the media you actually consume—YouTube videos, foreign films, and native podcasts—into synchronized, interactive Read Along studios with CEFR linguistic extraction and SM-2 spaced repetition.

Sub-second video & audio synced Read Along in 16 languages
Automated CEFR A1–C2 difficulty scoring & idiom detection
Native SM-2 spaced repetition with 1-click Anki TSV export
Zero-markup wholesale BYOK AI compute rates
Launch Nativra StudioFounding Backer Passes (€12)
Terms Extracted / Media Hr
0 terms
high-yield CEFR vocabulary
Cognitive Retention Rate
0%
grounded by SM-2 review cycles
Dialogue Synchronization
0%
sub-second timestamp matching
LANGUAGE IMMERSIONNATIVRA

Acquire authentic fluency from content you love.

Context-first language immersion. Import foreign YouTube lectures, drama subtitles, and podcasts. Nativra synchronizes audio dialogue, extracts high-yield CEFR vocabulary, and locks memory in place with SM-2 spaced repetition.

Launch Nativra
1
Universal Media Ingestion
Upload SRT/VTT subtitle files, YouTube links, or podcast transcripts in 16 languages
2
Video-Synced Read Along Studio
Sub-second timestamp alignment with instant contextual lookups, grammar breakdowns, and CEFR levels
3
SM-2 Retention & 1-Click Anki Sync
Algorithmic spaced review curves paired with instant formatted TSV deck exports capturing sentence context
Imported ContentSelect source
04:12• YouTube Sync
CEFR B2
Entscheidend ist, dass wir jetzt und zukunftsfähige Entscheidungen für das nächste Quartal treffen.
Augenmaß bewahrenB2
"keep a sense of proportion"
Native Speaker Audio (1.0x)
SM-2 Spaced SRS Synced
Due for Review3 items
Augenmaß bewahrenB2
keep a sense of proportion
zukunftsfähigC1
future-proof / sustainable
Entscheidungen treffenA2
to make decisions
IMMERSION ARCHITECTURE & CAPABILITIES

Engineered for Authentic Fluency from Real-World Content

Forget artificial cartoon phrases. Nativra gives you a comprehensive, institutional-grade immersion pipeline that transforms foreign media into durable, fluent communication.

STAGE 01 • INGESTION
MULTI-FORMAT PIPELINE

Universal Media Ingestion Engine

Break free from manufactured beginner dialogues. Ingest raw YouTube videos, SRT/VTT subtitle files, foreign podcast transcripts, and native articles across 16 world languages with automatic timestamp parsing and speech alignment.

1-click YouTube URL parsing with sub-second caption synchronization
Native SRT and VTT subtitle file upload with multi-speaker tagging
Support for 16 major languages including German, Spanish, Japanese, French, and Mandarin
Performance BenchmarkSub-second alignment on 100% of standard timestamped media
STAGE 02 • IMMERSION
SYNCED READ ALONG

Video-Synced Read Along Studio

Watch and read simultaneously without cognitive friction. Active dialogue highlights in sync with native speaker audio, allowing you to click or tap any word or phrase for instant contextual translation, grammar tags, and phonetic breakdown.

Real-time synchronized dialogue karaoke highlighting with zero lag
Instant click-to-reveal contextual translation without interrupting video playback
Integrated audio loop controls and native speaker playback speeds (0.75x–1.25x)
Performance BenchmarkInstantaneous contextual lookups with zero playback stutter
STAGE 03 • LINGUISTICS
CEFR & IDIOM CLASSIFIER

CEFR Framework & Idiomatic Collocation Engine

Not all words are created equal. Nativra profiles every word against the international CEFR standard (A1 Beginner to C2 Mastery) and flags idiomatic collocations, phrasal verbs, and workplace slang that traditional apps ignore.

Automated vocabulary categorization across CEFR tiers (A1, A2, B1, B2, C1, C2)
Colloquial idiom and cultural collocation extraction from natural dialogue
Grammatical part-of-speech decomposition and root-word lemmatization
Performance BenchmarkComprehensive CEFR profiling across 50,000+ lexical lemmas
STAGE 04 • RETENTION
SM-2 & ANKI SYNC

Cognitive Spaced Repetition & 1-Click Anki TSV Export

Stop forgetting vocabulary after the video ends. Nativra turns saved phrases into context-rich flashcards driven by the SuperMemo SM-2 algorithm, or exports them with 1 click into native Anki-compatible TSV decks.

Algorithmic SuperMemo SM-2 memory curve scheduling to maximize long-term retention
Context-preserved flashcards capturing original dialogue sentences and timestamps
1-click formatted Anki TSV deck export with audio references and CEFR tags
Performance Benchmark92% measured retention rate across active review cycles
STAGE 05 • ARCHITECTURE
SOVEREIGN BYOK

Private-First Lexicon & Wholesale AI Economics

Your personal vocabulary and learning history remain entirely yours. Nativra stores your lexical database locally and routes translations through RYUN's zero-markup BYOK architecture, paying pennies directly to AI providers.

Client-side encrypted lexicon storage with zero vendor lock-in
Zero platform token markup: connect Google Gemini, OpenAI, Claude, or Groq API keys
Unlimited video and subtitle processing for fractions of a cent per hour
Performance Benchmark0% token markup • 100% private client-side data sovereignty
FREQUENT QUESTIONS

Nativra Language Studio

Key architectural and pedagogical questions answered with total transparency.

Traditional language apps force learners through synthetic, gamified matching drills with disjointed sentences that bear little resemblance to authentic speech. Nativra enables context-first immersion: you learn directly from real-world media—such as YouTube interviews, foreign films, and native podcasts—acquiring vocabulary in the exact cultural and conversational context in which it naturally occurs.
OPEN BETA LIVE

Start Acquiring Authentic Fluency Today

Join students, polyglots, and international professionals breaking language barriers through authentic media, synchronized reading, and cognitive spaced memory.

Launch Nativra StudioFounding Backer Passes (€12)Explore Ravina