Dartastic, Sentry and Datadog

For Flutter and Dart, the standard beats the legacy meter.

Standard OTel RUM fidelity

Sessions, screens, taps and replays travel as standard OpenTelemetry, at the fidelity you choose, from an event timeline to full pixels. Your telemetry works with any OTel backend, so nothing locks you in.

Dartastic RUM

Targeted RUM

When a customer calls, support finds their device and starts a recording on that one device, from the dashboard. No release, no guessing, and no other device hears of it.

Support without Guessing

AI that makes fixes

Dartastic AI reads your telemetry and your source, proposes a patch, checks that it applies, and files it. On your own model key, with the cost of every answer shown.

Dartastic AI

Yes
Partly
No

For Flutter and Dart apps	Dartastic	Sentry	Datadog
Standard OpenTelemetry RUM
Built on standard OpenTelemetry, end to end	Yes	Partly	Partly
Sessions, screens and taps are standard OTel traces, metrics and logs	Yes	No	No
Send your telemetry to any OTel backend, with no re-instrumenting	Yes	No	No
No per-session fee, so no reason to sample sessions away	Yes	Partly	No
One trace from the tap to the database	Yes	Yes	Yes
Traces, logs and metrics from anything that speaks OTLP, in one place	Yes	Partly	Yes
An SDK written in Dart and Rust, not a wrapper around native SDKs	Yes	Partly	No
Targeted RUM
Start a recording on one customer's device from the dashboard, with no release	Yes	No	No
Choose that recording's fidelity and how long it runs	Yes	No	No
AI that makes fixes
Reads your source, proposes a patch, checks it applies, and files it	Yes	Yes	Yes
Answers from your sessions and replays, and cites them	Yes	Yes	Yes
Use your own model key, and see what each answer cost	Yes	No	No
AI included in every plan, with no add-on or credits to buy	Yes	No	No
Connect your own AI assistant over MCP	Yes	Yes	Yes
Replay at the fidelity you choose
Five levels of replay, chosen on the device	Yes	No	No
Events: the whole session as a timeline, with no picture of the screen	Yes	Yes	Yes
Outline: the shape of each major element, with no text at all	Yes	No	No
Wireframe: every element drawn, and no characters leave the device	Yes	No	Partly
Shadow: a real screenshot, blurred so no word can be read	Yes	No	No
Pixel: the real screen, with typed text or all text hidden	Yes	Yes	No
Replay held on the device, and sent only when something goes wrong	Yes	Yes	Partly
Replay with no per-session price: it costs its bytes	Yes	No	No
Emails, tokens and card numbers scrubbed on the device, automatically	Yes	Partly	Partly
What your users feel
Rage taps	Yes	No	No
Dead taps	Yes	No	No
Taps that end in an error	Yes	No	Yes
The widget and source line behind the jank	Yes	Partly	Partly
How fast the screen answers each tap (INP, on mobile)	Yes	No	No
Tells a slow network from a slow backend	Yes	Partly	Partly
Slow and frozen frames	Yes	Yes	Yes
Cold, warm and hot starts	Yes	Yes	Yes
Memory and CPU for each screen	Yes	Partly	Yes
Battery, low-power mode and thermal state	Yes	Partly	Partly
Taps captured automatically, with no key on every widget	Yes	Partly	Yes
Screens tracked automatically	Yes	Yes	Yes
Sessions tracked automatically, and chained across restarts	Yes	Yes	Yes
Crashes and errors
Readable stacks from obfuscated builds, with no upload step in your build	Yes	No	No
Obfuscated Dart stacks turned back into source lines	Yes	Yes	Yes
Errors grouped into issues	Yes	Yes	Yes
Frozen UI and app hangs, on both platforms	Yes	Yes	Yes
Crash-free sessions for every build	Yes	Yes	Yes
A crash storm costs one lookup, and never takes your fleet down	Yes	Partly	Partly
Alerts for each build or screen, to Slack, PagerDuty, email or a webhook	Yes	Yes	Yes
Your whole stack
Network calls over http and Dio	Yes	Yes	Yes
Network calls over gRPC and GraphQL	Yes	Yes	Yes
WebViews in the same session, with their vitals	Yes	No	Yes
Dart servers: heap, GC, host and container	Yes	Partly	Partly
macOS, Windows and Linux apps	Yes	Yes	Partly
Published benchmarks for what the SDK costs your app	Yes	Partly	Partly
Pricing, and your data
Priced by the GB, with no meter on sessions, events, spans or replays	Yes	No	No
RUM that runs inside your own network	Yes	Yes	No
Air-gapped install, with signed bundles, SBOMs and nothing sent to the vendor	Yes	Partly	No
Your data in your region, or your own cluster	Yes	Yes	Yes
Sampling you set for each signal, at build time or at runtime	Yes	Yes	Yes
Your team
SSO, a role for each member, passkeys and audit export	Yes	Yes	Yes
Saved and custom dashboards, with versions and export	Yes	Yes	Yes
A private package registry for your Dart and Flutter packages, in every plan	Yes	No	No
Every attribute explained right in the product	Yes	Partly	Partly
A step-by-step guide for moving off your current vendor	Yes	Yes	Yes

Compared for Flutter and Dart apps, from each vendor's public docs and pricing as of November 2026. Vendors change quickly, so check with them before you decide. Sentry and Datadog are trademarks of their respective owners, used here for factual comparison, not affiliation.

Ready to make them talk OTel?

See what your workload costs here, then keep your SDK while you compare.

Estimate your savings Read the migration guide Start a 30-day free trial

Due to potential abuse of Dartastic RUM, a credit card is required for free trials.