blas.You tried to learn a Celtic language.
This time it sticks.
Your home base for the Celtic language you never quite let go of: structured learning, progress you can see, and daily links to the podcasts, radio, and communities that keep it alive.
You’ve been here before.
You did Irish at school for fourteen years and can barely introduce yourself. Your nan slips into Welsh without thinking and you catch maybe half of it. You’ve tried Duolingo, bought a grammar book, started a course. Something always stalls.
“I did Duolingo for six months. I can say 'the boy eats bread'. I still can't have a conversation.”
The app that doesn’t teach
“I understood the grammar book. I still freeze when I try to speak. Knowing the rule and applying it are different things.”
Theory without practice
“I've started three times. Each time I hit the mutations wall and just... stopped. Nobody explains why 'mo cat' becomes 'mo chat'.”
The wall everyone hits
Your learning, structured
The core of your language journey.
blas. gives you the structure — drills, grammar, reading, conversation — and connects you daily with podcasts, videos, radio, and articles to keep the language alive beyond the app.
Vocabulary
2,000+ words with spaced repetition
Grammar
Verb conjugation, noun declension, syntax
Reading
Graded passages from beginner to advanced
Listening
Native speakers, multiple dialects
Conversation
Dialogue practice with real scenarios
Mutations
Séimhiú, urú, treigladau — drilled until automatic
Writing
Guided composition with real feedback
Pronunciation
IPA guides, dialect-aware audio
Exam prep
TEG, WJEC GCSE, and A-Level formats
A taste
This is what learning
feels like in blas.
Try a few drills — mutations, vocabulary, and sentences. These are just three of dozens of drill types. Every answer feeds the spaced repetition engine, so you practise exactly what you need.
Every answer uses spaced repetition. Get it wrong and it comes back sooner. Get it right and the gap widens. Your brain does the work. The algorithm just makes sure you practise the right things.
Apply the mutation
Why blas.
Built around the Celtic family.
From the ground up.
Designed for the Celtic family
VSO word order, initial mutations, the copula, dialect variation. The Celtic languages have their own logic. blas. was built around it, not adapted from something else.
Spaced repetition that adapts
The FSRS algorithm tracks every word, rule, and grammar point independently. Weak spots get more reps. Strong areas fade to maintenance.
Life gets in the way
Miss a week, miss a month. It happens. blas. picks up where you left off. No guilt, no reset. Your progress is always waiting.
Beyond the app
Each day, blas. recommends podcasts, videos, radio, and articles to explore. The app is your base. The language lives out there.
Real progress
See exactly where you stand.
Every grammar rule, every vocabulary set, every skill tracked independently. You can see what you know, what’s shaky, and what needs more time.
Watch your mastery grid fill from dark to bright as each skill strengthens. Honest progress, no inflated numbers.
It’s not too late.
blas. is available now on iOS, Android, and web. Free to start. No credit card needed. Pick up where you left off.