Favorite iPhone word games: Wurdle
I like word games, and the iPhone is a great place to play them. You might have just a couple of minutes while you wait for the bus, or for a meeting, and a quick word game can fill the time with an activity that keeps your mind active without immersing you too deeply in anything.
Wurdle is one of my favorites. It is a Boggle-type game, where you form words by tracing your finger over adjacent tiles. After the timer runs out, it shows you all the words you could have gotten. It scores you based on number of words and word length. My own personal scoring method is: if you get more than 50% of the possible words, you win. I have won once.