All tools / Monitoring and logging
Sentry vs Datadog: free tier limits side by side
The free tier limit rows of Sentry and Datadog, as each vendor's public page listed them. Data collected on 2026-10-05.
Each column keeps the order of that tool's own page. A row puts two items next to each other by position only: they are the same kind of limit only when the item names say so. This page ranks nothing and picks neither tool.
| Sentry | Datadog |
|---|---|
| Users: 1 | Hosts: up to 5 |
| Errors: 5k | Metric retention: 1 day |
| Session replays: 50 | Custom metrics: not stated by the vendor |
| Spans: 5M | |
| Logs: 5GB | |
| Cron monitors: 1 | |
| Uptime monitors: 1 | |
| Attachments: 1GB | |
| Lookback: 30 days |
Tool pages
Each tool page has the card and commercial use terms, the gotchas and the address of the vendor page that was read.
More in this category: Monitoring and logging.