Scholar Inbox
Scholar Inbox is a personal paper recommender which enables researchers to stay up-to-date with the most relevant progress in their fields based on their personal research interests.
Free
WebMac
Alternatives to Google Scholar Alerts
1 tool researchers use instead of Google Scholar Alerts: 1 free. Open-source and free tools come first.
Prices and licences change, so check each tool's site. Missing one? Suggest a tool.