Apple_App_Store_free_appsMany good apps and games for Apple’s iPhone and iPad are free for a limited time in the App Store.

The promotion is part of birthday celebrations for the App Store’s fifth anniversary, which takes place this week.

The selection of free apps is so good, I’m a little enraged because many of them I purchased at full price.

Among the highlights:

How to Cook Everything – if you don’t know how to cook, or if you can’t shop for all the ingredients you need to cook at once, this is your ultimate app for the kitchen.

You can search through hundreds of recipes to find something you like, and then get step-by-step directions to help you prepare the meal. There are even built-in timers to nudge you along the way.

How to Cook Everything (best used on the iPad) is also great because you can rate and share recipes with other users.

Another solid app is Traktor DJ, which lets you pretend to be Tiesto or DJ Hardwell behind the screen of your iPhone or Apple tablet.

Load up two tracks and then mix the tunes together with Traktor, applying loops, filters and other cool effects.

Traktor – in particular – is almost $20 in the App Store, so it’s one of the better deals out there this week.

For what it’s worth, the app developers aren’t getting reimbursed for giving this stuff away this week.

According to ABC. the CEO of the company behind Barefoot World Atlas said the loss of sales from one week is “far outweighed” by the gain in awareness of the app.