I launched this app less then 30 days ago and it is already making roughly $200 per month  in ad revenue plus another $15 per month in IAP.  

With a little marketing and promotion, this app could be a steady monthly income.

Description:

Personalized Card Collage lets you share special occasions you arrange from your iPhone, Facebook or Instagram into greeting card style frames and share them with your friends and family via Facebook, Email, Instagram, Twitter, Flickr, Tumblr or Dropbox.

What is so unique about this application is that is focuses on special events like Birthdays, Weddings, Anniversaries, Holidays, etc. 

How many times have you been on Facebook and realized it was your friend’s birthday and you forgot to get them a card?  No worries!  Simply grab one of the adjustable birthday frames, load in a bunch of photos of you and your friend and post it on their wall.  Brilliant.

-      60 fully adjustable greeting card style frames supporting up to 16 photos

• Text labels
• Rounded corners
• Photo effects
• Stickers
• Shapes
• Easy color picker
• Quickly edit your photos with our custom made photo editor
  • Adding effects & frames
  • One-tap auto-enhance
  • Stickers

Much More

Monetizing with

-Chartboost

-Applovin

-Revmob

-In App Purchases Available

Integrated with the following

-Twitter

-Instagram

-Tumblr

-Flickr

-Facebook

-Flurry for analytics