If you want your app to succeed one thing you need is reviews. More importantly you need good reviews!

Stats show that if an app has a rating of 4 stars or above it will do significantly better than an app with less. The higher the number of reviews, the more believable that rating is.

One issue you may have though is how to get reviews. Sadly most users don't rate apps unless they really like it or hate it. The Windows Phone OS also does nothing to prompt people to rate apps, so if you want to build up reviews then your going to need to do the prompting yourself.

The code to direct someone to the review page in the store for your app is quite simple. But even better is the fact Nokia have produced sample code that does the whole process!

Once you've integrated the code on the 5th launch of your app the user will see a prompt asking them to rate your app. If they choose not to then they will be prompted to send you feedback via email.

If they didn't rate your app then on the 10th launch they will be prompted again.

Now getting good reviews is slightly harder, for that your actually going to have to build a good app that people like.

You can download the Rate My App code from Nokia here.

Calorie Buddy is the latest of my apps released during summer of this year. Following on from the series of apps Training Buddy and Weight Buddy, Calorie Buddy is another app aimed at helping you keep track of your general health and fitness.

As the name suggests Calorie Buddy is all about monitoring your calorie intake. Simply set a target, enter your consumption each day and a handy pie chart will show you how many calories you have available left to eat that day. To navigate between different days simply swipe to the left or right.

One of Calorie Buddy's best features though is its live tile that enables you to see your remaining calories that day without even opening the app!

Download Calorie Buddy today

Training Buddy is an app that I wrote for Windows Phone 7, intended for anyone who likes Running, Cycling or Walking and would like to keep a log of their workouts.

The app will monitor the route you take along with various stats like speed, pace and how many calories you are burning. During the activity you can set up audio alerts to let you know how your doing and afterwards it will store a log of all the activities you have done for review later on.

For more information on the app visit www.trainingbuddyapp.com or view the app in the Zune Marketplace.