Netwarden
Bugsnag alternative · Honest comparison

Netwarden Apps vs Bugsnag

Netwarden Apps is a Bugsnag alternative for teams that want fixed pricing from $9/month, dependency-update CVE alerts across 8 ecosystems, and a self-hosted single Bun binary — and don’t need native iOS, Android, Unity, or Unreal SDKs. Bugsnag, founded 2013 and acquired by SmartBear in 2021, remains the more complete tool for native mobile error tracking and enterprise compliance.

By Netwarden Team · · Bugsnag data verified at bugsnag.com/pricing and bugsnag.com/platforms

Quick facts

Bugsnag vs Netwarden Apps at a glance

Definition pairs you can quote. Numbers from the public Bugsnag pricing page and Netwarden’s pricing page, both verified 2026-05-09.

Pricing model
Bugsnag: tiered per-event plans (Lite $59, Standard $209, Enterprise quote). Netwarden Apps: fixed monthly tier ($0 / $9 / $29 / $79), no per-event meter.
Entry paid plan
Bugsnag Lite: $59/month minimum, ~150K events. Netwarden Apps Solo: $9/month, up to 100K errors.
Self-hosted
Bugsnag: removed self-host option in 2022, now SaaS-only with quote-based Enterprise tier. Netwarden Apps: single Bun-compiled binary plus SQLite or Postgres.
Native mobile SDKs
Bugsnag: iOS, Android, React Native, Unity, Unreal, Cordova, Flutter (signal handlers, NSException, JNI, ANR/OOM detection). Netwarden Apps: none.
Stability score per release
Bugsnag: yes (sessions without error / total sessions). Netwarden Apps: no (release tag stored, no rate-based score).
Dependency-update CVE alerts
Bugsnag: not offered. Netwarden Apps: daily OSV.dev cross-reference across 8 ecosystems (npm, PyPI, RubyGems, Go, Cargo, Maven, NuGet, Composer).
Compliance
Bugsnag (via SmartBear): SOC 2 Type II, ISO 27001, GDPR DPAs, enterprise SSO. Netwarden Apps: alpha, no certifications today.
Hobby / side-project bill
Bugsnag floor: $59/month even for ~50K errors. Netwarden Apps Solo: $9/month for the same scale; Free tier covers 10K errors at $0.
Founded / parent
Bugsnag: 2013, acquired by SmartBear in 2021, public-company customers. Netwarden Apps: 2026, alpha.
Bundled host monitoring
Bugsnag: not offered (would pair with Datadog or New Relic). Netwarden Apps: Hosts module included — CPU/memory/disk metrics, CVE matching against installed packages, GeoIP failed-login alerts.
TL;DR

If you already know what you need

Two cards. Pick the side that lists what you actually need.

Pick Bugsnag if you need

Native mobile, history, enterprise compliance

  • 13+ years of error-monitoring history (founded 2013)
  • Deep native iOS, Android, React Native, Unity, Unreal SDKs
  • Stability score per release (sessions without error / total)
  • RUM via separate SmartBear product line
  • SOC 2 Type II, ISO 27001, enterprise SSO, audit logs
  • Established support org under SmartBear
Pick Netwarden Apps if you need

Dependency alerts, fixed pricing from $9, self-host

  • Dependency-update CVE alerts across 8 ecosystems
  • Fixed pricing from $9/month (vs Bugsnag Lite floor $59)
  • Single-binary self-host (Bugsnag removed self-host in 2022)
  • Bundled with server monitoring (Hosts module)
  • Lite analytics included: pageviews + 1 funnel × 5 steps
  • Modern SDK shape: six config keys total
Feature matrix

Side-by-side, by category

Bugsnag data taken from public docs and pricing as of May 2026. Footnotes explain partials.

FeatureBugsnagNetwarden
Errors
Real-time error capture (60-second ingestion) Yes Yes
Source-map symbolication on deploy Yes Yes
Auto-reopen on release regression Yes Yes
Stability score per release (rate-based) Yes No
Release tracking (tag + first-seen) Yes Partialrelease tag, no rate-based stability score
Performance
Real User Monitoring (RUM) Yesseparate product line No
Distributed tracing No No
Profiling No No
Analytics
Pageviews + top events No Yes
Single funnel (5 steps) No Yes
Dependency security
Dependency-update alerts (OSV.dev) No Yes8 ecosystems
SDKs
JavaScript / Node Yes Yes
Python Yes Partialalpha
Ruby / Go / PHP / .NET / Java Yes No
iOS / Android (native) Yesdeep platform support No
React Native / Unity / Flutter Yes No
Pricing
Per-event tier billing YesLite $59/mo, Standard $209/mo, Enterprise quote Nofixed price
Free tier Yestrial only Yes
Predictable monthly bill Partial Yes
Self-hosting
Self-hostable Noremoved self-host in 2022 Yessingle Bun binary
Bundled with infra monitoring
Server / host monitoring No Yes
CVE matching against installed packages No Yes
Compliance + maturity
SOC 2 / ISO 27001 Yes No
Years in market Yesfounded 2013, acquired by SmartBear 2021 Noalpha, 2026
Where Netwarden wins

The four axes we picked on purpose

Bugsnag is mature and complete inside its lane. We picked four problems where the shape of their plan or the shape of their company puts us in a better spot.

Dependency-update alerts (the wedge)

Bugsnag tells you when your code crashes. Netwarden tells you when the packages you depend on (and didn't write) get a security advisory with a fix available. We cross-reference your runtime dependencies against OSV.dev across 8 ecosystems: npm, PyPI, RubyGems, Go, Cargo, Maven, NuGet, Composer. None of Bugsnag's plans include this. It isn't on their roadmap.

advisory: GHSA-7rqg-x6f3-c9hh
lockfile: Gemfile.lock (rails-app)
current: rack 2.2.3  →  fix: 2.2.6.4

Fixed pricing, with a real entry tier

Bugsnag's smallest paid plan is Lite at $59/mo. Their next step up is Standard at $209/mo. There is no middle ground for a hobbyist or a side project. Netwarden Apps starts at $9/mo for our Solo plan and tops out at $29/mo for Studio. Both flat, neither metered. If you grow into needing Bugsnag's scale, switch later. If you don't, you saved real money.

Hobby app, ~50K errors/mo
  Bugsnag Lite:      $59
  Netwarden Solo:    $9

Self-hostable on a single binary

Bugsnag removed their self-hosted on-premise option in 2022. It is now SaaS-only with a quote-based Enterprise tier. If you operate in an air-gapped network, in a regulated jurisdiction, or you just want full control of your data, Bugsnag is no longer an option. Netwarden Apps ships as one Bun binary plus a SQLite or Postgres pointer.

$ ./netwarden serve --db ./data.db
netwarden ready on :8080

Bundled with host monitoring

If you also need server monitoring, Netwarden ships a Hosts module: agent install, CPU/memory/disk metrics, CVE matching against installed packages, GeoIP failed-login alerts, SSH posture audit. One tool, one bill. With Bugsnag you'd pair it with Datadog or New Relic and pay for both.

Where Bugsnag wins

What you give up coming to us

Bugsnag has been doing this longer than we have. There are real gaps where they win, and we want you to know about them.

A decade of error-monitoring history

Bugsnag has been in market since 2013 (acquired by SmartBear in 2021). They have battle-tested handlers for edge cases that newer tools haven't seen yet: old browsers, weird Node versions, native crashes that produce malformed reports. If you have a long tail of clients running ten-year-old software, that hardening is worth something.

Native mobile SDKs at depth

Bugsnag's native iOS and Android SDKs handle native crashes (signal handlers, NSException, JNI), ANRs, OOMs, and out-of-memory conditions that an HTTP-only error reporter would miss. They support React Native, Unity, Unreal, Flutter, Cordova. If you ship a mobile or game client, that gap is decisive. We don't have any mobile SDKs.

Stability score per release

Bugsnag computes a stability score for every release: sessions without an error divided by total sessions. It's a simple, useful metric for shipping behind a quality gate. We tag errors by release but don't compute the rate-based score yet. If release-quality gating is part of your CI pipeline, that workflow is more direct on Bugsnag.

Enterprise compliance

SmartBear (Bugsnag's parent) is publicly held with a real procurement story: SOC 2 Type II, ISO 27001, GDPR DPAs, enterprise SSO, role-based access at scale, audit logs. Netwarden Apps is in alpha and does not have those certifications today. If your procurement team won't sign off without those, Bugsnag is the safer call.

Pricing math

The hobby developer scenario

Bugsnag’s entry tier is $59/mo. There’s nothing below that. For a side project or a small SaaS, the floor is the story.

Scenario: Hobby / side-project: ~50,000 errors / month

Bugsnag Lite

$59
  • Lite plan minimum$59
  • Smaller plans?None
  • Self-host option?Removed 2022

Numbers from bugsnag.com/pricing as of May 2026. Bugsnag's pricing floor is $59/mo regardless of how few errors you actually have. The tier exists for solo devs but isn't priced like one.

Netwarden Apps Solo

$9
  • Solo plan$9
  • Errors includedUp to 100K/mo
  • Overage$0

Solo is our smallest paid tier. It includes errors, dependency-update alerts, and our lite analytics. Free tier ($0) covers 10K errors/mo for 1 project if you want to try it without paying.

Self-hosted Bugsnag alternative migration

Coming from Bugsnag

Migrating from Bugsnag to Netwarden takes about 30 minutes for a typical JavaScript or Node.js app. The SDK init shape is similar enough that swapping @bugsnag/js for @netwarden/sdk is mostly mechanical search-and-replace. Native mobile and game-engine call sites are the only pieces with no Netwarden equivalent.

For a typical JavaScript / Node app, the swap looks like this:

// before
import Bugsnag from "@bugsnag/js";
Bugsnag.start({ apiKey: "..." });
Bugsnag.notify(err);

// after
import { init, captureException } from "@netwarden/sdk";
init({ dsn: "https://[email protected]/1" });
captureException(err);

Source maps work the same way (CLI upload on deploy). Custom error metadata maps to our extratag. Native mobile and game-engine SDKs do not have a Netwarden equivalent and the codemod flags those projects as out of scope. For Bugsnag’s official feature list and pricing, see https://www.bugsnag.com/platforms and https://www.bugsnag.com/pricing.

Read the migration doc
Frequently asked questions

Bugsnag vs Netwarden Apps FAQ

Five direct answers we get asked most. Real numbers, no hedging.

Is Netwarden a drop-in Bugsnag replacement?

Partially. Netwarden Apps replaces Bugsnag for browser and Node.js error tracking, source-map symbolication, fingerprint-based dedup, auto-reopen on regression, and release tagging. It does not replace Bugsnag for native iOS, Android, React Native, Unity, Unreal, or Cordova SDKs — those have no Netwarden equivalent today and aren’t on the roadmap.

Can I self-host Netwarden the way I used to self-host Bugsnag?

Yes. Bugsnag removed its self-hosted on-premise option in 2022 — it’s now SaaS-only with a quote-based Enterprise tier. Netwarden Apps ships as a single Bun-compiled binary plus a SQLite or Postgres pointer. If you operate in an air-gapped network, in a regulated jurisdiction, or you just want full data control, Netwarden is currently the only modern option.

What’s cheaper for a side project: Bugsnag or Netwarden?

Netwarden, by a wide margin. Bugsnag’s entry tier is Lite at $59/month with no smaller plan below it. Netwarden Apps Solo is $9/month for up to 100,000 errors; Free tier covers 10,000 errors at $0/month. For a hobby app at ~50K errors/month, that’s $9 vs $59 for the same workload. Numbers verified at bugsnag.com/pricing on 2026-05-09.

Does Netwarden have a stability score per release?

No, not yet. Netwarden tags errors by release and tracks first-seen and last-seen per release, but does not compute a rate-based stability score (sessions without error / total sessions) the way Bugsnag does. If release-quality gating against a stability score is part of your CI pipeline, Bugsnag handles that workflow more directly.

Does Netwarden have native iOS or Android SDKs?

No. Netwarden Apps ships JavaScript / Node and Python (alpha) SDKs only. Bugsnag has mature native handlers for signal handlers, NSException, JNI, ANRs, OOMs, and game-engine integrations (Unity, Unreal). If you ship a mobile or game client, Bugsnag is the right tool today. If your stack is web plus backend (Next.js, Express, Hono, FastAPI, Flask, Django), Netwarden covers it.

Try Netwarden Apps free for 1 project

Free tier: 1 project, 10K errors/month, full dependency-update alerting. No card. Cancel by closing the tab.