No, it will not work because the Apple ID used to download and install the 2ndLine app should be the same one associated with your purchased subscription.

Here's why:

  1. Subscription association: 2ndLine subscriptions are linked to your specific Apple ID. Using a different ID creates a disconnect between the app and your active subscription.
  2. Verification purpose: When you launch the app, it attempts to verify your subscription status through your Apple ID. If the IDs don't match, verification fails, potentially limiting app functionality.

However, there are a few scenarios where the app might still work:

  • Same Apple ID but different email address: If you've changed your email address associated with your original Apple ID, using the same ID should still allow the app to function normally.
  • Family Sharing: If you've shared the original subscription purchase through Apple's Family Sharing with another Apple ID within the same family group, they might be able to access the app as well.

Here's how you can check your subscription details:

  1. Go to your device's Settings app.
  2. Tap your Apple ID banner at the top.
  3. Select "Subscriptions."
  4. Find your 2ndLine subscription and review the associated Apple ID.

If you encounter issues due to different Apple IDs, you might need to consider:

  • Unsubscribing from the original (unwanted) Apple ID and resubscribing with the desired ID.
  • Contacting 2ndLine support for further assistance in resolving the discrepancy between app and subscription.