GlitchTip vs Sentry for a One-Person App: Error Tracking That Fits on the Same VPS

Sentry is what you reach for when you want production errors to stop being folklore. The SDK works. The UI works. The quota email also works — usually right after a deploy that fans out exceptions you forgot to sample.

GlitchTip exists for a narrower bet: keep Sentry-compatible error tracking, self-host it, and fit the whole thing on the same VPS (or the same Compose stack) that already runs your one-person app. You trade hosted polish and deep product surface for a bill that stays boring and a data plane that stays yours.

For a solo builder, the question is not “which brand is more serious.” It is whether error tracking should be another SaaS meter or another container beside Postgres.

What you need on day thirty, not day one

Day one needs almost nothing: catch 500s, see stack traces, get a Slack or email ping. Both GlitchTip and Sentry can do that.

Day thirty is when the differences show up:

• Event volume after a bad release
• Noise from bots hitting dead routes
• Whether you can afford performance tracing and session replay features you barely open
• Whether your error payload includes customer data you do not want in a third-party SaaS
• Whether the monitoring box dies when the app box dies — or lives on a second cheap host

One-person apps die from ignored exceptions and from surprise invoices. Pick the failure mode you prefer to manage.

Sentry: the default that earns its keep — until the meter does

Sentry wins when you want maximum signal with minimum ops.

• SDK ecosystem and docs. Whatever language your side project drifted into, the path is paved.
• Product depth. Issues, releases, performance, alerts, integrations — you can grow into features without migrating tools.
• Someone else runs the collectors. When your VPS is on fire, your error tracker is still reachable (assuming your outbound events still leave the box).

The cost model is the catch for tiny products. Free tiers and team plans are generous until a spike, a crawler, or a recursive error loop turns “we’ll stay small” into a billing event. Sampling, inbound filters, and rate limits become part of your release checklist. That is fine engineering — it is also work you would not do on a quiet self-hosted instance with a hard local ceiling.

Sentry is the right call when your time costs more than the subscription, when you ship often across multiple services, or when you need features GlitchTip simply does not prioritize. It is the wrong call when you are paying for a platform while using 5% of it and resenting every quota email.

GlitchTip: Sentry-shaped, VPS-sized

GlitchTip aims at people who like the Sentry workflow — DSN, SDK, issues — but want to host the backend themselves. For a one-person app, that usually means Docker Compose next to the app, or on a sibling $5–$12 VPS so a crashing app does not take the triage UI with it.

Why that shape works:

• Familiar client libraries. You can often keep Sentry SDKs pointed at a GlitchTip DSN. Migration friction stays low.
• Predictable cost. Disk, RAM, and a backup script instead of per-event anxiety.
• Data locality. Error contexts, breadcrumbs, and request metadata stay on infrastructure you control — useful when customers are twitchy or you are twitchy for them.

Why it bites:

• You own upgrades, backups, and disk fill. Event stores grow. Indexes grow. The same negligence that kills self-hosted analytics will kill GlitchTip.
• Feature gap. You are not buying the full Sentry product catalog. If you need the deepest performance product or the fanciest integrations, you will feel it.
• Shared-fate risk. GlitchTip on the same single VPS as the app means the night everything OOMs, you debug without your error UI. Put tracking on a second small host if you care.

Self-hosting error tracking is worth it when you already run Compose confidently and you value boring monthly cost over zero-ops. It is not worth it if this would be your first self-hosted stateful service and you still have not automated backups.

The “same VPS” constraint, honestly

The title’s promise — fitting on the same VPS — is attractive and slightly dangerous.

Same VPS works when: traffic is modest, you cap retention, you monitor disk, and you accept that a pathological error storm fights your app for CPU and RAM.

Same VPS fails when: you retain forever, you enable every debug breadcrumb, or you confuse “it installed” with “it is sized.” A 1GB droplet running app + Postgres + Redis + GlitchTip + reverse proxy is a weekend project that becomes a weekday outage.

Practical pattern for one-person shops:

1. App + database on VPS A
2. GlitchTip (+ its DB) on VPS B, tiny
3. Backups for both
4. Alerts that do not only live inside GlitchTip (so a silent GlitchTip death still pages you)

If that sounds like too many moving parts, pay Sentry and reclaim the evening.

Noise is the real enemy either way

Tool choice will not save you from:

• 404 storms from scanners
• Client errors you cannot fix
• Healthcheck endpoints reporting as exceptions
• One bad cron that retries forever

On Sentry you filter to protect the bill. On GlitchTip you filter to protect the disk and your attention. The discipline is the same. Solo founders who skip inbound filters eventually hate whichever logo is on the dashboard.

Decision rule

Choose Sentry if you want zero-ops error tracking, you ship across multiple runtimes, you might use performance/replay features, or you do not want another stateful service in your life.

Choose GlitchTip if you already self-host, you want Sentry-compatible workflows, you care about data locality or predictable cost, and you will put retention limits and backups in writing.

Choose neither yet if you do not have basic uptime alerting. An error tracker is not a substitute for “is the site up.” Get a heartbeat monitor first; then instrument exceptions.

Migration notes

SDK compatibility makes GlitchTip ↔ Sentry moves less painful than most observability swaps. Still budget time for: DSN cutover, auth and team setup, alert rule rebuilds, and a week of dual-running if you are scared of gaps. Do not migrate during an incident. Migrate on a quiet Tuesday after a clean deploy.

Also decide retention before you import history. Copying a year of noisy events onto a small VPS is how self-hosting gets a bad reputation it did not earn.

Where I land

For a true one-person app on a single modest VPS, I would run GlitchTip on a second tiny box, keep seven to thirty days of events, filter scanners aggressively, and wire alerts to something I already watch. I would stay on Sentry if I were pre-product-market-fit and moving too fast to babysit Compose, or if the free/team tier clearly covered my volume with room to spare.

Error tracking should reduce uncertainty, not become a second product you operate. GlitchTip fits when self-hosting is already your operating system. Sentry fits when you want the problem to remain a line item. Either beats shipping blind — as long as you treat quotas, disks, and noise as part of the design, not surprises that arrive after the outage.