Apples Developer Account (99$/year) is much more expensive than Googles (25$/one time)... Therefor it might be difficult and expensive to create your own iOS developer account just to publish a few free apps.
My idea is to include a way to publish free apps on a Thunkable developer account. For some customers in social media design I used a service that automatically creates apps from facebook pages (Chayns by Tobit Software) and they also publish your iOS apps on their account. And they checked everything to be fine with Apple.
Maybe you could also charge some one time setup/check fee like 3$/app if Apple is okay with that but I think if you charge for approving the app and not monthly it should not be a problem
Still this would be a great way to make people able to publish apps that are likely not going to be profitable / not meant to monetize. Also I think this would be important because other than on Android, you cannot share any iOS app bypassing the App Store…