Fix permissions should do the same thing the script does which is available in almost all recoveries, The benefit to this app is that you don''t need to reboot into recovery mode to fix those apps that are FC.
I will be adding a fix all option here soon.
Sometimes flashing roms, playing with permissions, or performing other root operation can cause the Android system to forget which UID is associated with an application. In reality it does not forget this, it just issues the app a new id and is oblivious to the fact that it already had an id. When this occurs some apps can start force closing due to the UID mismatch between the UID that the system has assigned to the app and the UID that owns that apps data directory.
This app will resolve these problems. If you have an app constantly force closing you can try using this app to see if it will resolve the issue. Simply select an app in the list below and I will do the rest :)
There is also a donate version of this app in the market if you would like to donate for my work.