Mention pricing starts at $29/month (or $25/month when paid annually) for 3 alerts and 3,000 mentions per month.
Mention monitors mentions on the web (websites, blogs, forums, videos, images) as well as social media. If you connect your social media accounts you can reply to mentions from within the app.
Alerts/notifications within the app are in real-time. Email alerts/notifications can be delivered to your inbox daily, weekly, or never.
In addition to their web-based app, Mention offers apps for iPhone, iPad, Android, Chrome, Mac, Linux, and Windows.