Do my subscribers have to accept new terms and submit new payment details when migrating subscribers from Lightcast EasyPay to another subscription service provider?

Yes, normally the publisher’s new subscriber processing system requires the submission of credit card details and the acceptance of the new terms. Since the subscribers will enter a new contract with 1. a new payment provider and 2. the new subscription processor (two new entities), they have to accept the terms of these new agreements anyways, and in the process they should be asked to enter their payment preferences.

If you switch to the app store's in-app purchase system, most subscribers will most likely already have accepted the payment processor’s terms, which will now be the App-Store itself. For example, with Amazon FireTV subscribers, they already have an Amazon Account since they are using a FireTV device, thus, already have accepted Amazon’s terms a long time ago, and, have also already stored a credit card with Amazon. So, if moving forward, you have all transactions of FireTV users to run through Amazon, you’re all set when it comes to the subscribers accepting the payment processor’s terms and adding a credit card.

If you switch to any other subscription service provider other than the app store's in-app purchase system, subscribers will have to accept the terms of that third party subscription service provider since they will store the subscriber's data in their database. So you want to make sure that this third party subscription service provider sends a term acceptance request to your subscribers as this may be increasingly important with COPPA, GDPR and other governing laws in different regions.

If that third party subscription service provider uses the app store's in-app payment processing service, subscribers will most likely have a credit card on file with them already and you should not have any issues.