AI interview coach
Choose topics and answer practical questions. The app collects phrases you naturally say.
AI language practice from your real life
Learn the language you will actually speak.
LinguaLoop turns your own answers, routines, and stories into cleaned sentences, natural translations, shadowing practice, active recall, and measurable progress.
Features
A language app built around production, not streak theatre.
Your daily work is simple: answer, listen, recall, benchmark, repeat.
Sentence cleanup
Your rough notes become reusable language islands with clean source sentences and natural target translations.
Shadowing mode
Play generated practice audio, repeat aloud, and train rhythm before real conversations.
Active recall
Produce the target sentence from memory before revealing the answer.
Progress history
Track cards created, recall reps, audio plays, daily activity, and benchmark scores locally.
Mobile-ready PWA
Install it on your phone, keep your local library, and practise during tiny gaps in the day.
Workflow
From messy thought to daily practice in minutes.
Speak or type about work, family, travel, food, health, or your own topic.
AI extracts reusable sentences and translates them into your target language.
Use shadowing, active recall, and benchmarks to make the sentences available under pressure.
Build in public roadmap
A clear path from working prototype to a language-learning product.
Every milestone reflects the real application today. Filled markers are live; empty markers are still ahead.
37
of 59 milestones complete
63%
Completed
Next priority
Planned
Product foundation
The technical base required for a usable cross-device prototype.
Web application and Vercel deployment
Responsive product experience deployed on the production domain.
Landing page and installable PWA
Product website, mobile layout, manifest and offline application shell.
Email and Google accounts
Protected user access and session management through Clerk.
Neon cloud synchronization
Cards, conversations and progress available on phone and computer.
OpenRouter AI connection
Project-funded text generation, translation and speech generation.
Material capture
Collect the language a learner genuinely needs in daily life.
Any source and target language
Language pair, practical topics and custom conversation subjects.
AI interview coach
Focused questions and contextual follow-ups in the learner's strongest language.
Typing, pasting and browser dictation
Fast capture without forcing the learner into one input method.
Conversation file import
TXT, Markdown, CSV, WhatsApp-style exports and LLM conversations.
Persistent conversation sessions
Chat-style history, saved transcripts, resumable sessions and per-conversation card progress.
Uploaded audio transcription
Provider-independent speech-to-text for voice notes and recordings.
Realtime voice conversation
Natural spoken dialogue with an AI coach instead of turn-based text only.
Language Islands
Turn rough personal input into clean, reusable practice material.
AI sentence cleanup and translation
Natural source sentences and conversational target-language versions.
Personal card and story generation
Reusable sentence cards plus a bilingual mini-story from the same material.
Human review before approval
Edit, select or reject every AI-generated sentence before it enters practice.
Sentence library
Bilingual cards, notes, topics, audio controls and removal.
Duplicate prevention
Existing material is checked before new cards are accepted.
Prompt evaluation suite
Repeatable quality tests across languages, models and difficult inputs.
Grammar and difficulty intelligence
Automatic pattern tagging, CEFR approximation and card complexity.
Audio and shadowing
Build listening familiarity, rhythm and confident physical production.
Natural OpenRouter speech
AI-generated MP3 with a device voice fallback when required.
Shadowing player
Single sentence, previous/next, full playlist and continuous looping.
Persistent Vercel Blob storage
Generated audio remains available across sessions and devices.
Global audio deduplication
Matching text, model and voice reuse one stored recording.
CDN cache and retention policy
Fast playback with cleanup after 180 days without use.
Pronunciation recording loop
Listen to the model, record yourself and replay both versions.
Pronunciation assessment
Transcription, word-level differences, rhythm and pacing feedback.
Voice selection and verified custom voices
Multiple teaching voices and consent-based personal voice options.
Recall and measurement
Convert recognition into speech that is available under pressure.
Active Recall scoring
Produce from memory, compare the answer and receive a 0-3 score.
Basic spaced repetition
Again, Hard, Good and Easy schedule the next practice date.
Daily 30-minute plan
Conversation, shadowing and due-card practice in one learning loop.
Personalized next-session recommendations
Today selects the highest-value activity from due cards, difficult material, pronunciation, benchmarks and sprint progress.
History and repeatable benchmarks
Sessions, recalls, audio plays, activity and comparable test scores.
AI-generated 14-day sprint
Personalized daily sessions, starter phrases, real activity tracking and three speaking benchmarks for any language pair.
Adaptive FSRS scheduling
Personal intervals driven by memory performance instead of fixed days.
Speaking baseline and weekly trend
Repeat the same five-card test and compare accuracy, active vocabulary, pace and independence.
Pre-Input Comprehension
Import native transcripts, preview key vocabulary and approve useful phrases before watching.
Mobile routine
Make focused practice available during real gaps in the day.
Responsive installable mobile app
PWA layout designed for phone practice and home-screen installation.
Cross-device learning state
Continue the same library and progress record on mobile and desktop.
Practice notifications
Synced morning, lunch and evening schedules with device reminders while the PWA is running.
Hands-free Driving Mode
Voice-led sentence and vocabulary sessions with automatic scoring, spoken feedback and Media Session controls.
Offline audio playlists
Download due cards before commuting or travelling.
Lock-screen audio controls
Pause, repeat and move through shadowing without reopening the app.
CarPlay and Android Auto
Native vehicle templates, steering-wheel controls, audio focus and reliable background microphone access.
Native store releases
Capacitor packaging followed by Google Play and Apple App Store.
Commercial system
Control operating costs while keeping onboarding effortless.
Project-funded AI and rate limiting
Learners can use the core product without configuring a provider.
Per-user AI usage ledger
Track text tokens, TTS seconds, transcription and storage costs.
Administrative model controls
Central model, voice, fallback and budget management.
Customer-ready settings
Remove API and OAuth configuration from the standard learner experience.
Fair-use protection
Soft budgets, abuse detection, alerts and graceful limits.
Stripe subscriptions
Trials, recurring payments, invoices and cancellation.
Plan entitlements
Enforce the final Free, Learner and Coach product allowances.
Privacy and data lifecycle
GDPR controls, account deletion and private treatment of sensitive audio.
Beta and launch
Validate learning outcomes, reliability and commercial readiness.
Automated product test suite
Unit, API and end-to-end coverage for the complete learning workflow.
Monitoring and production alerts
Errors, latency, failed generations, sync health and cost anomalies.
Closed learning beta
10-20 active learners with interviews and retention measurement.
Language quality validation
Human review of important language pairs and model outputs.
1,000-user load test
Validate synchronization, AI limits, Blob delivery and database capacity.
Security, legal and support readiness
Audit, policies, consent language, onboarding and help centre.
Brand decision and paid public launch
Final identity, product positioning and commercial release.
Pricing
Start free. Keep the speaking habit when it works.
Founding members help shape the product and keep their early price while their subscription remains active.
Invited beta
Free
For early testers willing to share honest feedback.
- Personal context and starter islands
- Shadowing and active recall
- Limited AI and audio during beta
Founding Learner
£9 / month
For learners building a real daily speaking habit.
- 7-day free trial
- Personal AI learning materials
- Speech, benchmarks and adaptive reviews
- Founding price kept while subscribed
Teams and families
Later
Shared learning without compromising personal practice.
- Shared practice packs
- Partner and family progress
- Tutor-managed learning paths
- Early access waitlist
Start with the sentences already hiding in your day.
Open the prototype, answer one question, and create your first language island set.
Open LinguaLoop