@jordi comas where did you see that the Gmail add on for Trello worked on Android? As far as I know, there aren't any Gmail addons that work in the mobile app ... The page for the add-on is here, but doesn't mention android:
Can you point me to the place you read that this is compatible with the Android Gmail app?
Incidentally, if you want to reliably create cards from emails, and even use Trello as your Gmail client (meaning you can send and receive emails from Trello) on any device, you can take a look at this integration I wrote:
Hello Community! My name is Brittany Joiner and I am a Trello enthusiast and Atlassian Community Leader. I'll be sharing with you a series of videos with my top tips on how to best use Trello...
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