Yes, both elmah.io and EventSentry offer a Free Trial.
elmah.io is designed for Individuals, Freelancers, Medium Business and Small Business.
EventSentry is designed for Large Enterprises, Medium Business and Small Business.
The starting price of elmah.io begins at $17/Month, while pricing details for EventSentry are unavailable.
Some top alternatives to elmah.io includes Easyping, New Relic Alerts, Log Owl, Qualified, Workvivo, BulletLog, EventSentry, SentinelAgent, ezyLogs, SenseLogs, Logz.io and InsightOps.
Some top alternatives to EventSentry includes Splunk Enterprise, Splunk Cloud, Log Owl, Qualified, Workvivo, BulletLog, Splunk App for Infrastructure, Sensu, IFTTT, Phplogger, Logz.io and InsightOps.