Datadog vs Sentry: what their users struggle with

Not a verdict and not a star rating: the problems users of Datadog and Sentry describe in public, side by side, each one linked to its source (as of 2026-10-15).

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Every count in this table is of open reports in the recent window (Datadog since 2023-10, Sentry since 2023-10); older and fixed reports are not counted. The counts measure how much public discussion exists for each product, not which is better: a popular tool collects more reports.

Problems mostly raised about Datadog

• High and unpredictable Datadog costs · Pricing & plans · Annoyance
• Per-host pricing encourages infrastructure-focused monitoring · Pricing & plans · Blocks work
• Custom metrics increase billing unexpectedly · Pricing & plans · Annoyance
• Usage monitors do not align with contracted billing units · Billing · Blocks work
• Datadog search results make troubleshooting documentation harder to find · Documentation · Annoyance

Problems mostly raised about Sentry

• Self-hosted Sentry runs around 70 containers, hard to debug · Self-hosting & upgrades · Annoyance
• Move to restrictive license seen as hurting Sentry's open source claims · Other · Annoyance
• Sentry browser telemetry blocks doing work with blockers on · Permissions & security · Annoyance
• New Sentry terms of service allow machine learning training use · Permissions & security · Annoyance
• New Slack issue alerts take up much more screen space · Customization · Annoyance

Go further

Open Datadog and Sentry in the compare tool to filter by area and severity, Datadog alternatives, Sentry alternatives, or the state of observability and monitoring.

How the data is built. A theme is a group of reports about the same problem; unique means not matched to a theme on the other product.