Do you have an iPhone? Then you’ll want to know about these fun and functional applications:

Mouth Off
Turn a tantrum into a fit of giggles, lickety-split! This sound reactive app turns any mouth into a cartoony mug. Bonus: Held in front of an infant, this app provides hours of fun for slap-happy, sleep-deprived new parents.

iCurfew
Thanks to technology, teens can’t get away with anything these days… When it’s time for kids to ‘check in’ this app emails an un-editable location link to parents. Kids can customize messages with pick up locations, plan changes and any other info – building trust and eliminating unnecessary misunderstandings and arguments.

Baby Connect
This app tracks diaper changes, sleep, feedings, medicine dosages and more – best of all, info isn’t locked into a single device, but sharable with nannies, grandparents and other caregivers via web browser. An extra-nifty perk? All data is exportable for printing anytime a paper version of baby’s schedule is needed.

Am I Done?
When it comes to tooth brushing, hand washing, room cleaning, showering or room-straightening, little ones often have a much different idea of “done,” than we adults. The next time you hear that common refrain, just bust out this app with its faux “scanner.” Simply wave it around the proximity of the parts in question, hit one of the sneaky hidden “yes” or “no” buttons and let the iPhone do the nagging on your behalf.

Sit or Squat
Yeah, yeah, they should have gone before you left the house, but for those inevitable potty emergencies, Sit Or Squat can pinpoint a nearby restroom in a jiff. Users add locations, rate them and even upload photos (um, eww.) Sit or Squat is available for both iPhone and BlackBerry and if your phone’s not smart just text “sitorsquat” to 368266 – it’s free!

Web MD Mobile
Of course there’s no replacement for medical advice, but this handy app boasts useful first aid essentials, a pill identification tool a symptom checker and more. Bonus: the app’s handy pharmacy, hospital and doctor listings are indispensable for traveling families.

My Underwear
Four “safe and silly” games for enhancing eye-hand coordination, memory, motor skills and pattern recognition, with original music from Hot Peas N Butter and the bold, whimsical art of Todd Parr. Totally pop-up and ad-free, this app is suitable for pre-readers to 7-year olds.

Kidopolis
Thoughtfully planned out playdates can be derailed by sudden onset of a cold or fever, carpooling glitch or even a child’s grumpy mood. Kidopolis offers a way to seize those casual, spontaneous playdate opportunities. After adding buddies a personal network, users can check in to see where friends are at – and text, call or email through the app to request a meet-up. Info is password protected, and location mapping is only visible to your personally-selected circle of friends.

Mama Mantras
Stressed out? Ready to blow your top? Take a time-out with perspective shifting app and “reboot your mood.” Ahh…

Honey Do
This shareable app lets busy moms, dads or entire families share in all the tasks of running a household. Create, assign and prioritize tasks – such as grocery shopping, dry cleaning pick up as well as long term projects – and notify group members when it’s been handled.