There are certain leisures that parents might take for granted when raising children – and while listening to babies crying doesn’t seem like it would be very high on the list, it is for deaf parents.

As parents spend time around infants, they start to learn the difference between when a baby is crying from pain, rather than fussiness. Deaf parents, on the other hand, have no way of understanding whether their baby’s cries mean something more serious.

That’s why Dr. Ariana Anderson at the UCLA Medical Center and Semel Institute developed the Crybaby app.

Anderson, who is a mother of four, realized that over the course of…