Learn words once —
and actually keep them
Build custom dictionaries, read real books, and talk to an AI tutor. Spaced repetition schedules every review, so new words move to long-term memory.
You looked this word up last week. Do you remember it today?
Everything you need to master vocabulary
Custom Dictionaries
Create word lists for any language pair. Import from CSV/Excel or add words one by one with auto-enrichment.
Book Reader
Read EPUB and TXT books inside the app. Tap any word for an instant translation and save it straight to your dictionary.
Spaced Repetition
FSRS-based scheduling picks the next review interval for every card, so words move to long-term memory.
Voice Practice
Talk to an AI tutor — conversation, vocabulary and pronunciation modes on Plus; all voice modes, including teacher, interview and roleplay, on Pro. Free includes a 30-minute conversation trial.
Guided AI Lessons
The tutor leads the lesson: it opens the dialogue, steers every step, shows your progress live and wraps up with a recap and homework. Text and voice.
Multiple Exercise Types
Flashcards, typing, multiple choice, and listening exercises keep your practice varied. In sentence practice you build the full answer token by token, not just pick a word.
Grammar Trainer
Verb conjugation trainer and grammar modules for English and Spanish. Free on every plan.
Statistics & Streaks
Daily streaks, accuracy, achievements, and a weekly leaderboard show exactly where each word stands.
Multi-Language Support
English, Russian, Spanish, German, French, Italian, and Portuguese. CEFR level detection and word-frequency ranking included.
Pricing
Free
- 3 dictionaries, 2,500 words each
- Share up to 3 dictionaries and 3 groups
- 1 book in the reader
- 1,500 word lookups per week in the reader
- 30-minute voice trial (conversation mode)
- Grammar trainer and verb trainer
- Sentence study (100 cards per dictionary)
Plus
or €79.99/year
- 300 minutes of voice practice per week
- AI chat
- 15 books in the reader
- Unlimited reader words
- Unlimited dictionaries
Pro
or €119.99/year
- 500 minutes of voice practice per week
- All voice modes
- Unlimited books
- Unlimited dictionaries
- AI chat and interview tutor
How it works
Create your dictionary
Add words manually, import from a file, or save them from the book reader as you read.
Study daily
Open the app, review the cards due today, and add new words when you want more.
Track your growth
Watch your streaks, accuracy, and weekly leaderboard position as words move to long-term memory.
PairLingua in your pocket
Install PairLingua as a PWA today — your dictionaries, reviews, and streaks sync with your web account. Native iOS and Android apps are on the way.
Questions
Do I need a card to start?
No. The Free plan is free forever — dictionaries, the reader and SRS study work without a card.
What happens when I hit a free limit?
Weekly quotas (new words, reader lookups, voice minutes on paid plans) reset every week — nothing gets deleted and nothing locks permanently. Upgrade only if you want more room now.
Can I cancel anytime?
Yes — one click in account settings. You keep paid features until the end of the current period.