I would love to test your app out, as you mentioned it will be open source and specifically for the Apple Store.
Very risky business you would be engaged in. Risky in the form that you are risking losing access to your Bitcointalk account. Would you know how to verify the code of such an open-source app and understand what it's doing? Like many of us, I assume the answer to that question is negative.
Many users are pointing out the fact that your app might be vulnerable, as many users of this forum fear a backdoor that could lead hackers into their smartphones. But as you are saying, the app will be open source, so I think it won't be an issue for the members once the app gets approved by some of the high-class members of this forum.
Not just a high-class member. With high-class, I assume you mean high rank and recognizable name. Let's say I fit that category. Still, you shouldn't take my word for it because it means nothing as I have no coding skills and can't read and comprehend lines of code. The same goes for many other high-rank users. But some can, irrespective of their rank. It's those people who would need to check the app thoroughly and post their thoughts and recommendations.