amount of posts in loop

How about this one:

<?php
$args = array(
    'post_type' => APP_POST_TYPE,
    'meta_key' => 'clpr_featured',
    'meta_value' => 1,
    'posts_per_page' => 5
);
query_posts ($args);
?>

More information about query parameters can be found here.
It may be a good idea to read this article which explains a little bit more about other functions that can be used for querying posts.

thanks its working.

Only Problem its not working if i switch on these Plugin “Simple Custom Posts per Page”

Hard to say about plugin compatibility without checking its code.

thanky will contact the plugin author…