Proper way of Apple in app purchase with free trial in flutter

Question

I am coding in Flutter, and I want to implement an auto-renewable subscription with a 3day free trial period.

Unfortunately, I did not find any exact documentation or advice, how can I test it.

What I tried:

1) I created an auto-renewable product in the apple developer console. 2) inside this product I have chosen the “add promotional offer”, where I selected the “free trial”

Everything was easy and clear, but when I start my application for testing this, it only displays the normal price, and I find nowhere the free trial part. So I can not test it.

When I call the subscribe method, it will show me the normal price to charge. When I subscribe to my sandbox user, I do not see anything about the free trial in the validation JSON.

Is this normal? Could it be possible, that the free trial feature is available only in production? Or what did I forget?

Answer 1

You can change the settings of the in-app purchase item from app/play store, there is an option to add an introductory/trial offer where you can mention the trial period. In the code, you can deliver the item accordingly.