AltConf 2019 THE ALTERNATIVE APPLE DEVELOPER CONFERENCE AltConf is a free, community-driven and supported event, held in downtown San Jose alongside Apple's WWDC. AltConf is a community-driven event, assembled to serve developers and a product driven community. Held in downtown San Jose at the San Jose Marriott with 900 seats spread over 2 theatres. AltConf is an annual event timed alongside Apple