storing sensitive information

So, I did a search here looking for threads about iPod Touch/iPhone apps that'll do that...

Found nothing here, but on the iTunes Store I found LockBox and iVault, both free apps. Do you guys use them? Or any other? Are they, you know, reliable? I'd appreciate if you'd let me know what you guys use...

Why not read the reviews on itunes.....?

Once you've logged in, the iTunes store only enables the reviews from the country in which you have registered your account. So to read all reviews I must be on my computer, and logged off.

On my iPod, the iTunes store is only available when I'm logged in.
That means I'm bound to encounter reviews such as those for ShotGun!! which read "don't download this crappy application, these are rules for a real firearm game!".

So no, the reviews on iTunes aren't as reliable, and I thought, you know, the iPod app sub-section of a Mac-related forum would be a place to ask.