Life360 shares were down 13.6 per cent to a two-and-a-half-week low of $25.47 in early trading on Tuesday, leaving them down 22 per cent since the start of the year. The California-based company reported record quarterly revenue of $US159 million ($AUS225 million), up 38 per cent from a year ago, with its revenue from advertising at a record $US22 million ($AUS31 million). It added 4.6 million net new monthly users to top 100 million for the first time, with 102.4 million. Popular with parents of teenagers, Life360's technology provides a platform to track family members, pets and valuables. Its revenue was a "small beat" relative to consensus expectations, while its adjusted earnings before interest, tax, depreciation and amortisation came in well ahead.