Surprise, Android users! Tales of the Rays suddenly appeared on the Google Play Store and is now available for download!
Initial file size is 64.35 MB, however there are several more downloads to do after launching the app so make sure you're connected to a Wi-Fi connection when you boot it up.
To structure it out: Two downloads occur first for the main assets. After the tutorial battle and the first anime cutscene, a larger download occurs, which leads to an overall file size of 497 MB.
UPDATE (07/26): Now available on the iOS App Store! (iTunes Link)