According to Apple, when you sign up for a 3-day trial, you may get charged within the last 24 hours of your trial period.

Here's the exact statement from Apple's website: "If you signed up for a free or discounted trial subscription and you don't want to renew it, cancel it at least 24 hours before the trial ends."

The payment processes on App Store are completely managed by Apple, so unfortunately, this is a process KeyWise team is unable to control.

1. Go to the Settings app on your iPhone
2. Choose iTunes & App Store
3. Tap your Apple ID at the top of the screen
4. Tap View Apple ID (you might need to sign in or use Touch ID)
5. Tap Subscriptions
6. Under Subscriptions, tap KeyWise

Unfortunately, KeyWise is unable to refund Apple payments. If you think you were charged without a permission and would like to request a refund, we recommend reaching out to Apple Support.

The free version already offers some advanced features such as connecting to ChatGPT 3.5 and grammar check with a daily limit. You can unlock KeyWise Premium to use more advanced features such as unlimited access to ChatGPT 3.5, finding synonyms, translating texts, paraphrasing texts, and more.