I am sorry, I removed the free Juxtaposer Jr from the App Store over one year ago. It most likely won't come back and is not supported anymore.
However the paid version is alive and well and will continue being supported and further improved.
You can find it here:
Thank you for the fast reply. Juxtaposer Jr was a great app, I'm disappointed that I will not be able to enjoy it any longer. Unfortunately I'm not in a position to afford the purchase of the paid version at the moment and I was hoping I could use Juxtaposer Jr to finish a photo project I was creating.
I would really be appreciative of you offering support for your Juxtaposer Jr application again for previous users or your willingness to provide me with the opportunity to download the paid version of the application to use without having to purchase the app. Regardless, I really did enjoy the app none the less. Great work and thank you for providing it for use for the time that you did.