Offline access to the Knowledge app needs to be refreshed every 90 days as a security measure.
If you currently have access to AMBOSS, but have trouble accessing the Knowledge app, you can refresh your offline access as follows:
Tap on the app and go to Settings > Offline Access > Refresh
If your app is updated and you notice different information in your articles, then you likely have High Yield turned on!
High Yield is our feature that removes content that is not relevant to your Study Objective. You may have it enabled on the website, or on your mobile app. To turn it on or off for your app, just select the Eye icon at the bottom.