Hi! Thanks for reaching out about the audio cutting out after watching videos on your iPhone using the Substack app. I’d love to help you troubleshoot this.

To get started, could you tell me if the audio cuts out only after watching a video in the Substack app or also in other apps on your device? Also, does this happen with all videos or just specific ones? Knowing a bit more will help pinpoint the issue.

Meanwhile, I can suggest a few steps to try on your iOS 18.1.1 device that often help resolve audio problems after video playback:

1. Close and Reopen the App: Sometimes the audio system can get a little stuck after video playback. Fully close Substack by swiping it away from the app switcher, then relaunch it.

2. Restart Your iPhone: A simple restart can clear temporary glitches affecting audio.

3. Check Volume and Silent Mode: Make sure your iPhone isn’t muted or on silent. Also check the volume slider during playback.

4. Update the Substack App: Ensure you are running the latest version from the App Store, as updates often fix bugs.

5. Clear App Cache/Data: If possible, log out and log back into your Substack account in the app to refresh app data.

6. Test Other Media Apps: See if audio issues happen with other video or audio apps, which could indicate a broader device issue.

If these don't help, we can dive deeper into settings or consider if there's a compatibility issue, especially since some users have reported audio sync issues with similar platforms1 3.

Please let me know what you find or if you’ve already tried any of these steps!