Buy bullfrequency a coffee

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First bullfrequency was a prototype for my personal usage.


Some friends asked me to share it, so I decided to build the web app with some improvement.


I work hard in my spare time to update the site with the most requested features and hope Bullfrequency is really useful for you.


I want to keep this site completely free

If you'd like to say thanks, I'd really appreciate a coffee :)