Thank you for the welcome greetings! I’m glad I joined. So many replies already! As for the question, I guess I should have been more specific: I usually brew green, black or earl grey teas, leaf mostly (no bags). I don’t have a specific kind that I always use. I like to try new ones each time. The last one I bought was Hyleys – English green tea with jasmine flowers. I never did measure temperatures, only time. Maybe it’s time to start… I don’t want a timer I can always have with me, even when going out or travelling, But not something extra to carry… so I was thinking maybe a phone app is a good idea, CkatCook, which phone app do you use?