Made this as a coming soon page for our app that helps you to kill loneliness with quick 5 minute activities. Check it and let me know your comments about the coming soon page. Didn't posted on Show HN as the rules there don't allow to post a coming soon page. Please check and let me know your comments.
The seconds countdown on my phone was much too fast. Made it through two "minutes" in one go.
It's the normal countdown script I used. Will check on that. Thank you for letting me know.
Something like this seen somewhere.
There are lots of breath test challenges like this.