Today's Free App of the Day is XnRetro Pro
This is one of the free apps that have been on sale since yesterday (Click here for the complete list).
It's okay as far as it goes--works well, easy to use. It's kind of limited--25 old timey effects, 9 "vignette" effects (where the edges/corners are dark, 16 light effects and 32 frames. There is no way to add text. You can share via email, Facebook, Twitter or with another app, such as saving to Dropbox.
There's no gallery of pics one ha already worked on except as you've saved them to your device, and it doesn't save your current photo when you exit, so if you want to quit and come back, you'll have to save the image. Or, import the original pic again from your device; it does save the last settings you use, so once you've cropped the imported image to your liking, all of your last settings are applied.
Here's a pic I edited with the app--taken this summer. The frame is one of the selections that comes with the app.
39 of 64 reviews are four stars and above.
These apps are compatible with the original Fire and with my Fire HDXs. To tell if an app works for your Fire HD or other Android device registered to your Amazon account, click on the above link and look on the right side of the web page. Amazon will tell you if it will work with your registered device.
Also check out the other digital deals from Amazon, including great deals on MP3s and videos: