Keyword help!!!

After hours searching for a keyword tool my head is banging! I'd like to see if my keywords are worth a shit and if people are actually searching for them and in what volume mind you I'm using a android phone so half the Web apps won't open or freeze what's the killer tools I need to get started? Ready to take action but stuck on the first step

Ubersuggest is free and should work fine on your phone, it does on mine. I don't have enough posts to link you to it but it'll come straight up on Google

Try Sirium SEO. It's best for checking the density of keywords in android.