Not sure where else to post this

How important is this "app" to you? If your wife is offended by it, is it worth offending her and shaking/rattling her trust in you?

It's an "app".

Get rid of it. Show your wife that you ARE sorry and that you love her, and your marriage, and honor both.

Be an honorable man and husband and show your wife that she is vastly and infinitely more precious to you than an "app".

Some roses wouldn't hurt either.

With the Internet today we can click on a news story of substance,then who knows what else is being pushed.
I would not call a picture of a busty woman with a tag line pornography.
Trash is everywhere ,if it was not your fault then straighten it out before the enemy can damage your marriage.
Playing along is not what to do if you were not looking at pornography.
Explain the app to her look at her Web browser and have a senseable discussion.
On Facebook I have idiot friends that post some guys bare butt,those are older women mothers of in laws and the like ,then my nephews post girls in bathing suits etc.
I have blocked some people and some I hide there post,but even though I do not condone it it is still there.
Just like when you go to a mall and women are dressed like harlots ,you can not stop them,and you will look but how and how long you look is the question.
You can see somthing with out lust and I hope your spouse can understand this.

Better talk with your wife in an understanding way, and explain to her how you described it to us in your orig. post; and note that it was only a piece of comedy. Assure her of your devotion, and thereafter stay clear of worldliness for a godly walk before the Lord.

Aww.. you sound like a loving husband! I agree with what Brinny said – if the app is not important to you then get rid of it to show her that you really care for her hurt. Also, I think it would be a good idea if you can take her out for a cup of coffee or a simple dinner to talk to her about this – maybe she will understand you. I’ll be praying for you. Good luck!

Several of the women in church even had 'coin slots', so it's not unusual. But getting rid of the app is a great idea, in any case.