Apple's iPhone is still the best sought-after smartphone out these days, and new leaks suggest a few tweaks here and there.However, iOS users are not to fret as the IT giant also boasts of cool, new apps that anyone can't miss.

For this week, Mashable shares its own list of recently gathered new iOS apps; for the spooky fun-loving peeps to the adrenaline junkies. Read on:

Ghost Lens lets users design spooky images or videos with corresponding ghostly-ghastly effects. Upon choosing which photo or video on your iPhone to use, Ghost Lens then guides you in shooting for the perfect ghostly look as there are a number of filters to add or make adjustments for the effects.

Color Switch is another fun app that lets users think of creative ways to let a little ball run through a color wheel without hitting the wrong shade. Players need to hit the correct hues to get to the next level. Just imagine rainbow ping-pong on a virtual court.

NextGeekers also features another iOS app called GhostCodes, which lets users find someone using the Snapchat app. Users need to create their profiles first then after upload of the Snap code (with some information and type of content you would like to share), other Ghost Codes' users can then find you in the Snapchat universe. The app also lets users vote on other Snapchat users in different categories.

Another app for music fans out there is called Boom, which offers users another level of surround sound experience through headphones. The music app adds to the iPhone's featured sound quality. It also allows users to create their own playlists using tracks from their iPhone and with an intensity leveler, users can control the sound effects for that booming surround sound experience. For customization, users can navigate through the app's settings as well as the effects menu to adjust equalizer settings.