Android: Get missing translations for strings-resources
This isn't automated, but it's very fast. In Eclipse, to go Window->Show View->Other->Android->Resource Explorer.
Now, under the Resource Explorer tab at the bottom (or wherever you've moved it to) look under String. Each string should have the same number of versions if you have a complete translation, so you can scan down the list in just a few seconds.
Do this for each project that has strings.
I didn't know about this until after I localized, but it's still useful (such as when I add a new string).
If you are using Android Studio, it is easy to find which string is missing.
Right click on values/strings.xmland choose Open Translations Editor:
Where you can easily find missing strings in all languages as below :
Thank You...
The new official Android Lint tool helps you detect this problem, and many others: http://tools.android.com/tips/lint