Naan Studio’s Kazuho Okui has announced in a blog post that the company is discontinuing its Echofon Twitter client for Mac, Windows and Firefox.

Okui says the apps will continue to function, but Naan Studio plans end support for them in November, and there are no plans to update the apps in the future.

Naan is focusing its efforts instead on the mobile versions of Echofon – the company produces iOS versions optimized for iPhone and iPad.