How to Join the Poster App on Facebook
First of all I want to tell you that this app is only works on HTTP so before using this app make sure you have disabled the secure browsing from your Facebook account settings.
I have developed my own Facebook application which is able to post on all groups at once on Facebook without any trouble. First thing you need to do is to join that Facebook app which is developed by Roomi definitely myself I name this application Poster click on this link to join that app http://apps.facebook.com/thefbposter/ after opening the link click on Go to App and then click on Allow button to make it work perfectly.
How to Use the App
Now the main part comes here, now you have joined the app Poster now you will be redirected to the page where you will see a text box where you can put your message and just click on Submit button to post your required message on all the groups’ walls you have joined, you can also see on the page that how many groups you have joined on Facebook.
Have Any Question?
If you still have any question or problem about this app then simple comment below or contact me on Facebook.