This app was mentioned in 1 comment, with an average of 6.00 upvotes
I recently released the app "Firestorm for LIFX." It offers three different fire effects: candlelight, fireplace, and campfire. The flicker effect runs at a random interval and brightness. The campfire has the shortest interval (fastest flicker) and widest brightness range, followed by candlelight and then fireplace. Full disclosure: I'm the developer and it's a paid app.
Google Play: https://play.google.com/store/apps/details?id=io.scottdodson.firestorm.lifx
App Store: https://itunes.apple.com/us/app/firestorm-for-lifx/id1179113220?ls=1&mt=8
Website: http://firestorm.scottdodson.io/