BabyPhone Deluxe is the best baby monitor application for parents away that runs on the iPhone 3, 3GS, 4 and 4S.

BabyPhone Deluxe outperforms the common baby monitors on the market in a lot of situations: broad coverage, mobility of the parents, voice quality, two way communications and an additional Recorder. You will have more freedom, save money and still care perfectly for your baby. 

BabyPhone Deluxe works like a standard baby monitor: just switch on the application and place your mobile close to your sleeping baby. It will call the configured phone number when a sound exceeds an adjustable level. You can hear your baby AND on top also calm the baby over the loudspeaker. With the BabyRecorder you can record all sounds your baby makes, as well as ambient noise. You will know how often your baby coughs in the night, or what it is babbling or singing about in the morning before you wake up. You can even export the recordings and save them in your family archives!

BabyTweet will send you messages via Twitter if your child is crying or sleeping.

You only need ONE iPhone or ONE iPad in the children's room. The app will send tweets which you can receive on every browser-capable device (smartphone/PC/Mac/iPad) using http://twitter.com or a Twitter-App. Both devices need only Edge E for the data transmission. Of course, 3G or WiFi work as well. The app will report your child's activities using Twitter regularly (interval configurable in the settings). The configuration of the app is wizard-based and super easy.

So far you don't have a Twitter account? Or you don't want to use your regular Twitter account? With iOS 5 you can comfortably create a new Twitter account directly with your iPhone/iPad: ==> Settings ==> Twitter.

Some of the many advantages:
• automatic re-activation after each alarm
• setting up the app is a breeze with the configuration wizard
• unlimited range
• you can tweet to many receiving devices
• no interference with other baby monitors
• slider for the sensitivity
• Twitter account selection from your iPhone/iPad Twitter contacts
• filter for shorts sounds like coughing etc.
• automatic screen dimmer
• rock-solid stability
• events log tracks all activities in the baby's room
• beautiful 3D-graphics