Brain Games - Boost memory power with free brain games
Mi Box - 4K Ultra HD streaming and gaming box powered by Android TV
Dualnback.works - Dual N-back is a specific brain training exercise, that's been shown by research - it might improve fluid intelligence.
Caavo - One search. One experience. One remote. All your content.
Pixelogic - Daily Picross - Nonogram logic game with 5000+ puzzles and a daily puzzle
NVIDIA Shield TV - Streaming box with Google Assistant and Google Cast.