The apps use AI-powered tools trained on baby cries to help parents decode their children’s needs
2-MIN READ2-MIN ListenKyodoPublished: 2:44pm, 12 Jun 2026Crying without a clear reason can be a major source of anxiety for parents. As families look for new ways to navigate the uncertainty of early childcare, Japanese developers are rolling out AI-powered tools designed to identify the possible causes of a baby’s distress.One of them is Babylingual, a free app released in March by Moto Numazawa, a 25-year-old father in the Kanagawa prefecture city of Chigasaki, near Tokyo.
In late April, Numazawa held his smartphone up to his three-month-old son, Saku. Seconds later, the app displayed the message: “I’m hungry.”
Alongside the result, the screen showed a gauge indicating the likelihood of that interpretation compared with other possible needs and advised: “It might be feeding time.”
Babylingual applies previous research suggesting babies make distinct vocalisations in response to needs such as hunger and sleep, classifying cries into five patterns.
