The app should sound the alarm if the price moves too much within a small span of time. I always thought it'd be fun to have an alarm clock play you a little story when you woke up, woven from little off-key ad lib type snippets.

Maybe...
Be like Jim Chesterfield. Jim woke up at 7am three days ago with a bad hangover. Jim went to the supermarket where he was assaulted by a large, pale woman wearing only sweatpants and a bra. Jim felt mildly discomforted and retreated to the YMCA where he donated money to unappreciative millennials. Jim then went to work where he was killed after accidentally discharging from his reproductive system onto his boss. The price of Bitcoin is currently server refused connection.

[Stay in bed]               [Face the day]

ETA: I'm bored. I'll see if I can throw you something together within the next few hours using MS Paint and AJAX. ETA2: Oh, missed Reynaldo's post.