BIB is an iPhone app that sends you a push before race registration and lottery windows open and close. Big races open months out and sell out fast, so BIB watches the dates for you. Dates come from each race's own website; if one is only an estimate, the app says "Est." instead of guessing. Search thousands of running, trail, ultra, triathlon and cycling events, tap the bell, and get alerts. Free to start. Built by a solo developer and runner. Android coming soon.