Is Sentry free? What it actually costs in 2026
Yes, there is a free tier — with limits.
Free Developer plan (1 user, 5K errors/mo); Team $26/mo (billed annually) with pay-as-you-go overages on errors, logs, spans, replays, and profiling hours; Business $80/mo; Enterprise custom. Overage pricing on the Team plan starts at roughly $0.0003625 per error above the included 50K/month, plus separate per-GB charges for logs and metrics.
What you are locked into
SDKs use the open Sentry protocol (DSN-based ingestion), which is itself a strength for switching — most alternatives below are wire-compatible and only require changing the DSN, not application code. The lock-in is mainly economic (event-based billing that scales with traffic) and licensing (FSL, not OSI), not data-format.
If you would rather not pay: GlitchTip
GlitchTip
A lightweight, fully open-source, Sentry-SDK-compatible error tracker.
Free to self-host; optional hosted plans from $0 (1K events/mo) to $250/mo (3M events/mo)
See all 3 Sentry alternatives comparedCompare the free options head-to-head
Pricing is verified against the vendor's published figures and dated above. Vendors change prices — confirm current numbers with Functional Software, Inc. (Sentry) before you commit. More error tracking & exception monitoring decisions on Macrostack.