unleper

Get a refund from Apple, it's super easy.

Just click on the "Report a problem" link in your receipt email or go to their website to do the same.  Although their terms say "90 days", just provide a link to this issue (I did) and explain that it is not even usable.

I was able to get a full refund.

Not only is it good to get your money back, it's the only way to have a shot at motivating Mojang to fix it.

Bonus: You still get to keep the app, so "if" it ever gets fixed you could use it again.

Having this same issue related to MCPE-19383

This is TERRIBLE!!!!!!

This has been an issue for nearly a year and it is still not fixed. I hope there is a way to get my money back, but the amount of time I've thrown away because of this bug is ridiculous.

Mojang, get an Apple TV and play, it will happen to you.

This game isn't even worth playing with a bug like this, everything you work to collect and build is USELESS.

This app should be pulled from the App Store, it is irresponsible to keep selling the app with this bug to unsuspecting people.

To answer your questions posted earlier on...
1. No
2. No
3. 1
4. Yes, in addition to this bug of my world getting corrupted and no longer loading, the app crashes regularly at seemingly random times. Otherwise, no.
5. Cable, 50/5mb down/up, solid, no problems. In addition to this bug, Minecraft regularly says that I need an Internet connection which means that it's dropping my connection regularly.
6. No
7. Yes
8. No
9. Stable
10. Random world, from scratch, absolutely vanilla.
11. No
12. Only world save.
13. No
14. One world save; it's corrupted.
15. Running the latest version from the App store with only one world save and no customizations of settings or add-ons etc. Only signed in with one iCloud account with plenty of storage, always "save and quit" before finished playing. Noticed that the world size randomly shows sizes from 0MB to ~1.5GB after "save and close" and going back to play, and randomly growing and shrinking over the course of building the world.