Zoho Creator Expert is needed

I currently have an existing Zoho Creator application that needs to be modified and enhanced.

I am looking for a Zoho Creator expert who can assist me with the following tasks:
1. Add a subscription feature to the app, using apple subscriptions.
2. Check for subscription status after user logs in.

I would like to avoid using zoho checkout as it requires the user to add credit card info.
So I’m looking to show the user a page with subscription options and when he clicks on the subscribe button I want the apple payment to show up. That way user will not need to add credit card info and will be able to manage his subscription from his iphone settings.

See attached example and the link below for reference.
https://applepaydemo.apple.com/payment-request-api

The expected time frame for completion of the task is within 1 week.
The ideal candidate for this project should have:
- Strong knowledge and experience in Zoho Creator
- Proficiency in form creation, customization, workflow automation, work with API and deluge.
- Ability to modify and enhance existing Zoho Creator applications
- Excellent time management skills to meet the 1-week deadline.