Google Play Pass. If you subscribe to Google Play Pass, Terraria is included for free as long as your subscription is active. This is the only legal "full paid" experience without buying the game outright.
Have you successfully (and legally) upgraded to 1.4.4.9? Tell us your favorite new feature in the comments below. Terraria 1.4.4.9 Apk Full Paid
$4.99 is less than a coffee. If you have to save for a week, do it. The peace of mind, the automatic updates, and the ability to play online with strangers is worth infinitely more than the three hours you will waste trying to get a broken APK to work. Google Play Pass