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Japan Earthquake Alert App Says Sayonara to X - Unseen Japan
(unseen-japan.com)
This is a most excellent place for technology news and articles.
The app itself has alerts so I'm surprised people are using Twitter to get it's alerts. I don't use Twitter, but I didn't know that was a thing. NERV is the fastest-alerting app I've found on Android for quakes here. Good on them, though, for better use of their money and getting off that hellhole.
As others have mentioned, Twitter is huge in Japan. Almost no small businesses have websites; they market and show availability etc. through Insta, FB, and twitter
Is it faster than Android's built-in earthquake alerts?
50-50 from my experience, but I'd say sample size is too small to say.