I just wanted to say this app seems to be working again. Fingers crossed it stays that way (but I'm a little dubious given the track record.) I don't know what's going on with the founder and why he hasn't kept users up to date but I can now search for and analyse high volume keywords. This is the reason I bought it in the first place. I haven't checked anything else out yet but it looks promising. So if you bought any tiers for this software, try it out again.