Free, nonintrusive and personal are what put the “gem” into VoiceGem, a new app for iPhone and the Web launched on 3 August by a pair of Stanford grad school students. Like many good ideas, VoiceGem was conceived out of an unmet need.

Arda Kara and Alexander Blessing shared the problem of wanting to stay in touch with their families that lived in time zones at least 8 hours ahead of their Palo Alto, Calif., location. Text and emails weren’t personal enough, and calling could wake their sleeping families.

VoiceGem Sends Voice Messages Via Email | TechNewsDaily.com.