If you're planning a trip to St Petersburg and want to get to know one of Russia's finest cities, consider downloading and installing Exploring St Petersburg: A Stroll with Tchaikovsky. This new iOS app provides users with a walking virtual tour of the famous city - complete with a commentary on the classical architecture of central St Petersburg - and is available to download now in the App Store.

Another jailbreak-related scam application has appeared in the App Store. As iDownloadBlog reports, a new iPhone application called "Activator" promises to deliver iOS customization options to non-jailbroken iPhone handsets, and is available for $0.99 in the App Store.

The next installation in Gameloft's popular Asphalt racing series - Asphalt 7: Heat - is now available in the App Store. Asphalt 7: Heat is a universal app, and is currently available to download for just $0.99.

Magic the Gathering - Duels of the Planeswalkers 2013 (known more informally in the App Store as "Magic 2013") is now available to download for the iPad. The app - which is the latest installation in the hit "Magic: The Gathering" franchise - allows players to travel across the plane of the Shandalar, and do battle with the fearful Planeswalkers.

The London 2012 Olympic Games aren't far away, and in celebration of the event an official mobile game has appeared in the App Store.

Maybe the price drop will make up for Sparrow's lack of push notifications.

Smule has just launched Ocarina 2 - the sequel to its popular Ocarina application - in the App Store. Just like its predecessor, the all-new Ocarina 2 provides users with a virtual ancient flute that can be played by blowing air into an iPhone's microphone. However, far from being a mere replica, the sequel provides fans with a brand-new song mode, along with a refreshed selection of Ocarina tracks for users to play through.

AppCent is a brand-new jailbreak tweak that has the power to add progress percentages to iOS app downloads.

Here's another App Store scam you need to avoid!

A new iPhone app called mivault (free) allows Apple fans to keep track of their purchases - including information such as receipts, serial numbers and warranty - in an easy-to-use application and Web service.

EyeO Weather is a brand-new weather app for the iPhone, iPad and iPod touch, which provides users with location-based weather reports for up to seven days in the future.

Another Brave-themed iOS app to hit the App Store in the last week (there's already been Temple Run: Brave, and Brave: Storybook Deluxe) is Brave Utility, a new, free iPhone application designed to work with an interactive arrow-fireing Web-game.

If you're a task-management freak but still haven't found an iPad app that can take care of all your GTD needs, consider downloading Metro Tasks: Love your to-dos!, a new application that's available for $6.99 in the iPad App Store.

If you're a fan of the super-popular Poker by Zynga (free), consider downloading the recently released Zynga Slots HD: a new, free iPad app that allows players to hit the reels and win coins, at a variety of virtual slot machines.

There have been “App Store scammers” aplenty over the last few years, but this one really takes the biscuit. A new, universal application has recently appeared in the App Store, which disguises itself as the jailbreak “app store” Cydia, created by Jay Freeman.

Lost Souls: Enchanted Paintings (free) is a new, spooky iPhone game developed by G5 Entertainment, which is available to download in the App Store now.

The popular iStopMotion for iPad ($9.99) - an iPad app that allows users to create great stop motion animations on Apple's tablet computer - has just received an update. Now, users of the app can take advantage of a new "Theater" section, a series of technical improvements, and a better way to share videos via email.

SEGA has recently updated its Total War Battles iOS app, adding a bunch of new features including a new game mode, new Game Center achievements, social network integration and much, much more.

Carat (free) is a clever, new app that promises to provide users with the information required to potentially vastly improve the battery life of their iPhone handset.

Sky Gamblers: Air Supremacy ($4.99) has recently received an update, adding extended gameplay, Facebook integration and a number of brand-new planes.

If you're brave enough to hand your beloved iPhone or iPad over to a youngster - or perhaps, on the other hand, if said youngster owns an iDevice of his or her own - consider downloading WATCH Disney Channel (free). This new, universal application allows Disney Channel fans to watch shows from the network on an iDevice, on-the-go.

Cult of Mac recently had the pleasure of meeting with Vito Technology - the makers of Star Walk ($1.99) and Solar Walk ($0.99) - at WWDC '12, and heard about the developer's plans for its popular astronomy iOS applications.

Prepare yourself - realMyst has arrived in the iPad App Store, and is available to download for $6.99.