Anko Keyboard is a Japanese keyboard for Android by a solo developer in Japan — flick-input only, no QWERTY. It uses the Mozc conversion engine with context-aware automatic conversion, a split layout for one-handed portrait typing, a user dictionary plus names & places dictionaries, clipboard history (20 items), and 8 flat themes. ¥680 one-time, sold directly; the APK link is emailed after checkout.
One Screen Home is an Android launcher from a solo developer in Japan. Everything lives on one home screen: large folders and widgets placed freely, not on a strict grid. Widget pages swipe sideways while the dock stays put, plus notification and music player items on the home screen, 6 themes and icon-pack support. Free, no ads, no tracking — free APK on GitHub (github.com/yuyatsujimoto08-hue/one-screen-home). A one-time Pro key (¥680) unlocks all themes, icon packs and layout backup.