Rollbar and Fehlo compared.
Rollbar is an established error tracker from San Francisco with its own SDKs. Fehlo accepts errors from the sentry SDKs on a server in Nuremberg. Here are the differences, with sources.
Facts about Rollbar as of 24 October 2026; sources are listed below. If you spot a mistake, write to hallo@fehlo.de and we will fix it.
Rollbar has been around since 2012. It bills by occurrences, charges no seats, and offers session replay, an MCP server and an AI agent that writes pull requests.13
Side by side
| Topic | Fehlo | Rollbar |
|---|---|---|
| Provider | NeuralMedic GmbH, Ingolstadt, Germany | Rollbar, Inc., San Francisco3 |
| Data location | Germany (Hetzner, Nuremberg) | Google Cloud, data centre in Iowa; no EU option found2 |
| Free | 5,000 events, 1 user, 30 days | 5,000 occurrences, 1,000 session replays, unlimited users, 30 days1 |
| 100,000 a month | Solo: €9 a month, 3 users | Essentials: $49 a month ($40.83 yearly), 90 days1 |
| 500,000 a month | Team: €29 a month | Essentials: $119 a month ($99.17 yearly)1 |
| SDKs | the open sentry SDKs | Rollbar's own SDKs |
| Session replay | no (in progress) | yes1 |
| Uptime and status pages | on every plan | not found in the offer |
| Certifications | none of our own; Hetzner is ISO/IEC 27001 certified | SOC 2 Type II, ISO 2700123 |
Fehlo prices net, plus VAT. A Rollbar occurrence corresponds to one error event at Fehlo.
When Rollbar fits better
- You need session replay or 90 to 180 days of history.
- You have a large team and little volume: Rollbar charges no seats, also on the free plan.
- Your procurement needs SOC 2 or ISO 27001 from the vendor itself. Fehlo has no certification of its own.
- You want AI agents that write fixes as pull requests by themselves.
When Fehlo fits better
- Data and contract partner should be in Germany.
- You want uptime monitors and status pages in the same tool.
- At 100,000 to 2 million errors a month Fehlo costs considerably less.
- You want the sentry SDKs that many frameworks already ship with.
Switching
Rollbar and Fehlo use different SDKs. Replace the Rollbar SDK with the sentry SDK for your platform, set the DSN from Fehlo and upload source maps with sentry-cli. The guides show how per framework. sentry-cli releases replaces deploy notifications to Rollbar.
Sources
- Rollbar pricing, rollbar.com/pricing and rollbar.com/pricing-for-agents, retrieved 24 October 2026. Prices in US dollars.
- Rollbar documentation, "Security", docs.rollbar.com/docs/security, retrieved 24 October 2026.
- Rollbar terms of service, docs.rollbar.com/docs/terms-of-service, and home page rollbar.com, retrieved 24 October 2026.
Rollbar is a trademark of Rollbar, Inc. Fehlo is not affiliated with Rollbar.
Questions
Can I use my Rollbar SDK with Fehlo?
No. Fehlo accepts events from the sentry SDKs. You swap the SDK and the calls, such as rollbar.error for Sentry.captureException.
Does Rollbar have an EU region?
Rollbar's security documentation on 24 October 2026 names Google Cloud with its data centre in Iowa. We found no EU option there.