Once, while traveling, I suddenly realized that my streak deadline had just passed, and I managed to cheat by changing the time on my phone. However, when I tried that again at some later date it didn’t work.
Duolingo is pretty good for getting you started with a new language, and can provide some valuable practice, especially if you don’t yet have a teacher. But don’t take it too seriously. Its translations are often poor:
I used to set my phone's time zone to Hawaii when I needed a little more time to do my streak. The trick is to not open the app after midnight without changing your time zone, otherwise it will lock in your lost streak.
Duolingo is pretty good for getting you started with a new language, and can provide some valuable practice, especially if you don’t yet have a teacher. But don’t take it too seriously. Its translations are often poor:
https://lee-phillips.org/whyDuoLingoWhy/