urgentry vs Bugsnag.

Why this comparison is the wrong shape if you are mobile-first

Bugsnag built its reputation on mobile crash tracking. The iOS and Android SDKs are mature, ANR detection on Android is a feature most error trackers do not attempt, and app stability scores give mobile teams a release-health metric that maps to what app store reviewers and users care about. That product surface took years to build and reflects a genuine understanding of how mobile engineering teams debug.

urgentry does not have ANR detection. It does not have app stability scores. It accepts crash reports from the Sentry mobile SDKs, which covers minidumps, ProGuard mappings, and dSYM files, but the mobile-specific tooling that Bugsnag built around those raw signals does not exist in urgentry. If a mobile app is your primary surface and mobile-specific observability is the reason you are evaluating error trackers, this comparison ends here. Bugsnag is the right tool for that job. urgentry is not.

The rest of this article is written for teams whose primary surface is server-side, where both tools are plausible answers and the choice turns on deployment model, SDK ecosystem, data residency, and cost shape.

What Bugsnag is

Bugsnag is a commercial error tracking SaaS founded around 2013 and acquired by SmartBear in 2021. It is cloud-hosted; there is no self-host option for typical customers. Pricing is tiered by event volume.

The product covers error ingest, grouping, issue lifecycle management, release tracking, and alerting across a broad set of languages and frameworks. The Bugsnag SDK ecosystem spans most major server-side languages alongside the mobile and frontend SDKs. The dashboard is polished and the onboarding path is short.

The mobile surface is where Bugsnag has historically differentiated. ANR detection catches Android Not Responding events that do not produce a crash report. App stability scores aggregate crash-free session rates into a release-level metric that mobile teams can track over time. Those features reflect a product built specifically for mobile engineering workflows.

The SmartBear acquisition in 2021 put Bugsnag inside a portfolio that includes testing and quality tools across the software lifecycle. Some customers have noted concerns about product direction and pricing following the acquisition. For teams weighing long-term vendor risk, that context is relevant. SmartBear is a large organization and Bugsnag’s direction is now subject to portfolio priorities rather than the original product thesis.

Bugsnag does not have native OTLP ingest. Teams that instrument services with OpenTelemetry send traces to a separate backend; errors and traces live in different tools unless Bugsnag is integrated with an OTLP-capable platform.

What urgentry is

urgentry is a Sentry-SDK-compatible error tracker that ships as a single Go binary. It accepts events from the official Sentry SDKs with no code changes; the DSN is the only configuration that changes. It covers 218 of 218 documented operations in Sentry’s published OpenAPI schema. It runs against SQLite by default, with Postgres as an option for teams that want it.

The binary settles at roughly 52 MB of resident memory at 400 events per second. There is no queue process, no worker, and no external broker. Ingest, grouping, alerting, and the UI all live in the same Go process. A $5 VPS with 512 MB of RAM can run urgentry alongside a small application without margin anxiety.

urgentry accepts OTLP/HTTP for traces and logs in the same binary that accepts errors. Teams that already export OTLP from their services get errors, traces, and logs in one place without running a second tool. This is a meaningful operational difference for server-side teams who instrument with OpenTelemetry.

The license is FSL-1.1-Apache-2.0, the same license Sentry uses. It converts to Apache-2.0 two years after each release. Internal commercial use has no practical restriction beyond that.

Capability matrix

Ten rows covering the surfaces most relevant to this comparison.

Where Bugsnag is ahead

The honest rows where Bugsnag has a concrete lead, not a theoretical one.

Mobile-first instrumentation

Bugsnag’s iOS and Android SDKs are mature and carry features that took years to build. ANR detection on Android catches a class of mobile errors that never produce a traditional crash report: the system kills the app for failing to respond to input. Bugsnag detects these events, attributes them to the responsible code path, and surfaces them alongside traditional crashes. That feature does not exist in urgentry.

App stability scores

App stability scores aggregate crash-free session rates across releases into a metric that mobile teams can use to assess release health at a glance. Bugsnag presents this as a first-class dashboard element. It maps to what mobile teams care about between releases: is this version more or less stable than the last one? urgentry does not have an equivalent metric. Release tracking exists in urgentry, but the mobile-specific stability rollup does not.

Zero operational overhead

Bugsnag is SaaS. You pay a bill and errors appear in a dashboard. There is no binary to update, no SQLite file to back up, no VPS to monitor, and no disk to fill. For teams where operational overhead is the binding constraint and cost is not, that is a real advantage. urgentry is simple to operate, but it is still something you operate.

Integration tooling

Bugsnag has spent years building integrations with project management and alerting tools. For teams already inside a specific ecosystem, those pre-built integrations reduce setup time. urgentry covers webhooks and email; the breadth of pre-built integrations is narrower.

Where urgentry is ahead

The rows where urgentry has a concrete lead for server-side teams.

Sentry SDK swap: one config line, no code changes

Any team running the official Sentry SDKs can point at urgentry with a DSN change. No code changes. No re-instrumentation. No staged rollout of a new SDK to every service. The Sentry SDK ecosystem covers Python, Go, Node.js, Ruby, Java, PHP, .NET, and more, and urgentry accepts all of them through the same envelope protocol. urgentry covers 218 of 218 documented Sentry API operations; the SDK coverage is complete.

Bugsnag uses the Bugsnag SDK. Switching from Bugsnag to either Sentry or urgentry means replacing instrumentation in every service. That cost is real engineering time, and it grows with the number of services.

Full data on your hardware

urgentry runs on infrastructure you control. Error event data, stack traces, user context, and breadcrumbs stay in your database on your disk in your jurisdiction. For teams in regulated industries, for teams with GDPR obligations, or for teams that have a policy against sending production error data to third-party SaaS, self-hosting urgentry satisfies those requirements without an enterprise contract.

$5 VPS footprint

urgentry settles at roughly 52 MB of resident memory at 400 events per second. A $5 to $10 VPS is a realistic home for urgentry alongside a small application. The total infrastructure cost for self-hosted error tracking is the VPS line item, which is a different cost shape than event-volume-based SaaS pricing that scales with traffic.

OTLP-native traces and logs in the same binary

Teams that export OpenTelemetry traces and logs from their services can send those signals to urgentry alongside error events. One binary accepts all three. There is no separate trace backend to run, no separate log aggregator to pay for, and no data join required to see a trace alongside the error that triggered it. Bugsnag has no OTLP ingest and sits entirely outside the OTLP ecosystem.

The SDK question

This section is the one that determines whether the comparison is relevant to your situation.

Bugsnag uses the Bugsnag SDK. urgentry uses the Sentry SDK. These SDK ecosystems do not overlap. The event formats are different, the ingest endpoints are different, and the SDK initialization code is different. You cannot send a Bugsnag event to urgentry, and you cannot send a Sentry event to Bugsnag.

For a team with no existing SDK investment, both tools are on the table. The decision is a product and deployment question, not an SDK migration question.

For a team already on the Sentry SDK, the comparison is simple: urgentry accepts those events with a DSN change. Bugsnag does not. Moving to Bugsnag from Sentry means replacing SDK instrumentation across every service.

For a team already on the Bugsnag SDK with custom breadcrumb handlers, Bugsnag notification callbacks, or integrations that depend on Bugsnag-specific SDK behavior, moving to urgentry means replacing that instrumentation with the Sentry SDK equivalent. That is real engineering work. Some Bugsnag SDK features have Sentry SDK equivalents; others do not map cleanly. The SDK question is not just a one-line change.

The honest advice: if you are on the Bugsnag SDK and the mobile-specific features matter, stay on Bugsnag. If you are on the Sentry SDK and want self-hosting with full data control, urgentry is a one-line DSN change. Everything else in this comparison is secondary to where your instrumentation already lives.

When to pick Bugsnag

• Mobile is your primary surface and ANR detection or app stability scores are features your team uses.
• You are already on the Bugsnag SDK across multiple services with custom integrations, and the migration cost to any other SDK is not justified.
• Zero operational overhead is the binding constraint and you are willing to pay SaaS pricing for that.
• You want pre-built integrations with a broad set of project management and alerting tools and do not want to configure webhooks.
• Your team has no Sentry SDK investment and is choosing a first error tracker on a mobile-heavy stack.

When to pick urgentry

• Server-side errors are your primary surface and your services run the Sentry SDK. The DSN swap is one config line per service.
• You want error data on hardware you control, in a jurisdiction you choose, with no third-party SaaS in the event pipeline.
• You run on a small VPS or a tight infrastructure budget. urgentry at 52 MB on SQLite fits where Bugsnag SaaS pricing scales with volume.
• Your stack exports OTLP and you want errors, traces, and logs in the same place without running a separate backend for each.
• You have GDPR obligations or internal policies against sending production error data to third-party cloud services.
• You are leaving Bugsnag due to concerns about product direction following the SmartBear acquisition and want a self-hosted alternative that removes vendor dependency.

What this comparison is not

This article is not a mobile-vs-server checklist. Mobile error tracking is a real discipline and Bugsnag has genuine expertise there. urgentry is not trying to out-compete Bugsnag on mobile; the surface areas are different and the honest read is that Bugsnag is the better mobile-first tool.

This is also not a quality judgment on Bugsnag. A decade of production deployments, a mature SDK ecosystem, and a real customer base are not things urgentry can claim. Bugsnag is a well-built product. The reason urgentry exists is not a complaint about Bugsnag; it is a different bet about deployment model, SDK ecosystem, and where error data should live.

The choice is about deployment model and SDK. If those two axes point at urgentry, the rest follows. If they point at Bugsnag, the rest follows the other way. The capability gap on mobile-specific features is real and named in this article, and it should carry the weight it deserves in any evaluation.