blas.Best Cornish Learning App
The app built for Kernewek.
A serious Cornish course, live now.
Cornish revival has been driven by passionate volunteers and the Cornish Language Office, but until now no app has shipped a full curriculum with mutation drilling and reading. blas. does.
Start learning Cornish
How blas. compares
An honest look at what each Cornish learning tool does well, and where it falls short.
| Feature | blas. | Go Cornish | Memrise | Kowethas |
|---|---|---|---|---|
| Mobile app | ✓ | ✓ | ✓ | ✕ |
| Mutation drilling | ✓ | ✕ | ✕ | ✓ |
| Grammar engine | ✓ | ✕ | ✕ | ✓ |
| Spaced repetition | ✓ | ✕ | ✓ | ✕ |
| Reading passages | ✓ | ✕ | ✕ | ✓ |
| Conversation practice | ✓ | ✕ | ✕ | ✓ |
| Live tutor classes | ✕ | ✕ | ✕ | ✓ |
| Offline mode | ✓ | ✓ | ✓ | ✕ |
| Free tier | ✓ | ✓ | ✓ | ✕ |
Go Cornish is a free phrasebook app from the Cornish Language Office. Memrise community decks cover vocabulary only. Kowethas an Yethow Kernewek runs in-person and online classes with real teachers, which an app cannot replace.
Why Cornish needs a real curriculum
Kernewek has consonant mutation, a case system, and a literary tradition that vocab apps cannot capture.
Four mutations
Soft, hard, mixed, and breathed mutations drilled with their triggers, not memorised in isolation.
Sourced Kernewek
Cornish content is sourced from real material or curated by teachers, never AI-generated.
No Duolingo Cornish
Duolingo never built a Cornish course. blas. fills the gap with a structured curriculum.
Irish-grade depth
The course uses the same curriculum structure, drill types, and reading model as Irish and Welsh.
What's inside the Kernewek course
Sourced vocabulary
Core Kernewek vocabulary with audio and spaced repetition
Full conjugation
Verbs conjugated across tenses, persons, and moods
Reading passages
Graded passages with comprehension questions
Mutation engine
The Cornish mutation system drilled until it becomes reflex
Grammar lessons
Cited grammar lessons covering the Kernewek system
Pathways
Structured units from absolute beginner upward
Start Kernewek on blas. today.
The Kernewek course is live in the app. Download blas. free and start today.
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Frequently asked
Is there a Cornish course on blas.?+
Yes. The Kernewek course launched in June 2026 and is in the blas. app on iOS and Android, free to start.
Which Cornish form does blas. use?+
Course content is written in the Standard Written Form (SWF), the orthography accepted by most Cornish institutions today.
Is Cornish worth learning in 2026?+
If you have any tie to Cornwall or care about reviving Brythonic languages, yes. The community is small but active.