This app is helpful if you find yourself forgetting spells as Invoker mid team fight. It may help to hold your fingers in a similar position to how you actually use your keyboard when you play. When I first used it I just used my thumbs.

You will get flamed if you cast the wrong spells in a team fight, you will get flamed if you don't carry/nuke/push/disable/escape... You need to be a master at casting the right spells, this app at least helps you become proficient at invoking the spells you want to. Good luck 😂👏.

This is not a bad app, but not great either. It basically consists of: spells cheat sheet, spell invocation quiz against time, and an outdated skill build.

The iPhone app is good for learning spells, and the online game on the computer is good for muscle memory. This app is great.

Exactly what I needed, all learned the spells super quick

Remembering skills is hard for any new invoker player, spending a few minutes with this app will help you remember most of them at least for a 2000-3000mmr game.

Helped me learn invoker. It is also a good way to burn time and get better at dota.

Pretty fun, great way to pass the time. I can say it has helped my skills with Invoker, worth the dollar.

Really good app for keeping your mind for Invoker sharp. Only small issue is that it doesn't include the new stuff from the new patch (6.84 added the 360 deafening blast) but I don't think that is a huge deal. Again, really good app for working invoker's spells.