UNDATED - Add your baby monitor to the list of apps you can now have.
The Evoz app works with iPhones, iPod touches and iPads.
You need two of the devices to use the system. One stays with the baby and one goes with you.
When your baby cries, Evoz can alert you with a text, email or phone call.
As an added bonus, the app logs enormous amounts of data about your child. You can keep track of how much time your baby spends crying and sleeping and find out how much noise there is in the baby's room.
The program comes fully featured for two weeks. After that, unlimited listening costs $7 a month.
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