About the author
I am Jakub Dwojak and I write these apps myself – the code, the content and everything you see on screen.
Why ten apps rather than one
Because what they teach is ten separate skills, not ten tabs of one program. Grammar, conjugation, particles, counters, reading in context, casual speech, keigo, pitch accent and mimetics are drilled differently, measured differently, and each becomes useful at a different point.
An app that does all of it at once opens on a menu and does each of those things slightly worse. Separate apps cost ten times the releases and ten sets of documents – but that cost is mine, not yours.
How they are built
All of them work without an account, without ads and without tracking, and studying works offline. That is not a promise made on this page – it is written in each app's privacy policy.
Contact
Email is fastest. Each app has its own address – you will find it on its page and in its documents.