Paid for LR subscription on iPhone. Not working on MacBook

What @kglad said.

See this Adobe post:

https://community.adobe.com/t5/lightroom-ecosystem-cloud-based-discussions/p-subscriptions-from-mobile-app-stores-don-t-work-with-desktop-software/m-p/12551330

it sounds like you purchased a mobile, not desktop subscription.  (the least expense desktop subscription is $10/mo for one year - the photography plan which includes ps and both lr's.)

you can confirm by checking your account, https://accounts.adobe.com

Let me move this to the Account, Payment, & Plan forum for you, which is the appropriate forum for your question.

* The Using the Community forum is for help in using the Adobe Support Community forums, not for help with specific programs, installation issues, or account issues such as subscription questions or billing problems, or generalized questions about Creative Cloud services.
* Questions about business plans should be posted in Enterprise and Teams 
* Product questions should be posted in the associated product community.
* Installation questions should be posted in the Download & Install community.
* Account issues, including subscription questions or billing problems, should be posted in the Account, Payment, & Plan community.
* Questions about the Creative Cloud desktop app or general questions about apps in the Creative Cloud should be posted to the Creative Cloud Services community.

Contact Customer Support

This is a public forum, not Adobe support. Users, including the Community Experts, can't provide support for account, subscription, billing, download, or product activation issues. Support for those issues requires an Adobe employee.

Adobe provides support through the Chat function on the contact page or through a phone call. There is no email support.

CHAT: Click the following to contact Adobe customer support staff for help:

https://helpx.adobe.com/contact/support.html

You must be signed in with your Adobe ID and allow cookies in your web browser for this to work. Disable any ad, pop-up, or script blockers.

This is the link to the US website. If you are not in the US, the site should redirect to the page appropriate to the region associated with your ID.

Click the chat icon at the bottom right of the page to open a chat session.
If that doesn't work, try this link, which opens a chat window directly:

https://helpx.adobe.com/contact.html?rghtup=autoOpen


PHONE: You can also search this page for a regionally appropriate phone number for customer support.

https://helpx.adobe.com/contact/phone.html