Four years have passed since Apple Inc. released the iPhone and revolutionized information technology by combining cellular, media and personal needs with an endless sea of applications available to users.

Most iPhone apps prove to be of good social and personal value because they quench our thirst for social networking, navigating, news and more. But some simply ridiculous apps appeal to the market of dumb users with smart phones. Here are a few of those apps and their prices.

Baby Shusher: $4.99

The days of soothing lullabies could soon be silenced by a shushing app that promises to calm babies who refuse to sleep, won’t stop crying or are being generally fussy.

For a pre-selected amount of time, the app plays a recording of repeating shushes that must be turned up louder than the crying and placed within two feet of the little noisemaker.

However, the app does not change, feed, burp or affectionately nurture infants — most likely the reason for their tears in the first place.

The iPhone community can thank Austinites Chad and Katie Zunker, the creators of the Baby Shusher, for relieving parents from their caregiving duties and letting Chad’s voice, the recorded shusher, relax their baby to tranquility. Just remember to put the phone on silent or airplane mode during sessions. A sudden Marimba beat blaring in infants’ ears will probably return them to cries and screams, making it even harder to take that important call.

Hold On!: $0.99

Most iPhone gaming apps are the perfect solution to boredom in dull times. Users can even tune their skills and shoot for the top score board.

But a game released by IMAK Creations guarantees to absolutely waste users’ time by making them simply “Hold On!” to a button for as long as they can.

The app represents several steps back for gaming because it has no story, presents no challenges and requires no skills — other than having too much time on your hands and the patience of a rock.

For those out there without lives, this is the opportunity to glorify your name by placing on a top score board with users who have held on for days. I send you with this advice: keep your iPhone juiced up and use your non-dominant hand — there are other things in life more important to tend to.

Kissing Test: Free

Kissing is an art that takes practice and dedication to develop, but receiving a critique after the experience is unusual.

The Kissing Test app, developed by Ron Bell, can be calibrated for a single or couple kiss and asks the sex of the user(s) before the test begins. Users then pucker up to the screen for evaluation. The app tells them what type of kisser they are, including rankings such as “kissing student,” “computer nerd” and “irresistible.”

If it is hard for you to find a pair of lips, whip out your phone and get this free app to learn what kind of kiss iPhones enjoy. Just don’t forget to sanitize the screen, you sensual technophiles.

Poop the World: $0.99

There are a countless numbers of belching, farting and all-around unpleasant iPhone applications based on bodily functions, but this app by SWS Digital Inc. takes crap apps to a whole new level.

The app lets users log their bowel movements by place, date, time and shape, allowing them to track, share and even earn trophies.

A request from users to make the app more social led the creators to add a feature that updates users’ Twitter and Facebook profiles, in addition to allowing them to view poops around the world in real time, based on logging. These social brown diaries are pointless and grotesque, a true smear on humanity that flushes civility down the toilet.