IOU Helper is a standalone client made by myself (a fan) of IOU to allow players to easily run their IOU accounts with some nice features attached. There is nothing in this client that Ray (the game developer) has deemed inappropriate. IOU Helper is made in Visual Studio with c#. The lastest version of the client itself is run using webkit. Feel free to visit the github. If you would like access to the IOU Helper Pro github, please message Level#0923 on the discord.
Here is some information on the different versions that have been released.
As of version 1.8, we have numerous features that you may benefit from
Here's some screenshots of IOU Helper running...