Rollbar vs Flagsmith
Continuous code improvement — real-time error tracking + AI triage
vs. Open-source feature flags + remote config — SaaS, private cloud, self-host
Pricing tiers
Rollbar
Free
$0. 5,000 events/month. 1 user. 30-day retention. Basic alerts.
Free
Essentials
$21/mo (starting). 25K events/mo. Unlimited users. 30-day retention. Slack/Jira integrations.
$21/mo
Advanced
$79/mo (starting). 100K events/mo. Deployment tracking, RQL, AI triage. 180-day retention.
$79/mo
Enterprise
Custom. Starting ~$599/mo. 1M+ events. SSO, audit logs, HIPAA, priority support.
Custom
Flagsmith
Free
$0. 50,000 API requests/mo. 1 team member. Unlimited flags. Community support.
Free
Self-hosted
$0 (OSS). Host yourself via Docker/K8s. Fair-source license (non-compete).
$0 base (usage-based)
Start-up
$40/mo. 1,000,000 API requests/mo. 3 team members. Standard support.
$40/mo
Scale-up
$200/mo. 5,000,000 API requests. 10 team members. Priority support + SLA.
$200/mo
Enterprise
Custom. Unlimited API requests, SSO, SAML, RBAC, audit logs, on-prem.
Custom
Free-tier quotas head-to-head
Comparing free on Rollbar vs free on Flagsmith.
| Metric | Rollbar | Flagsmith |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Rollbar · 15 features
- Alerts — Rule-based alerts to Slack/email/PagerDuty.
- Custom Events — Log arbitrary events via API.
- Deploy Tracking — Annotate errors with deploy SHAs.
- Error Tracking — Capture uncaught exceptions + crashes.
- Intelligent Grouping — Fingerprint-based deduplication.
- Notifiers — 60+ alert channels (Slack, Jira, Teams, PagerDuty, Opsgenie, etc.).
- Person Tracking — Tie errors to end users.
- Real User Monitoring — Browser performance + error correlation.
- Rollbar AI Triage — AI root-cause analysis + suggested fixes.
- RQL Query — SQL-like error querying.
- Session Replay (add-on) — Video-like user session reconstruction.
- Source Maps — Minified JS → original.
- Telemetry Timeline — Breadcrumbs of events before crash.
- Webhooks — Outbound event streaming.
- Workflow Automations — Auto-assign owners, auto-close resolved items.
Flagsmith · 14 features
- A/B Testing — Multivariate flag splits.
- Audit Log — Full history of flag changes.
- Change Requests — Approval workflow for flag changes.
- Edge API — Global low-latency flag eval.
- Feature Flags — Boolean + multivariate + JSON flags.
- Local Evaluation — Server SDKs eval flags locally — no per-req API call.
- Percentage Rollouts — Gradual traffic ramp.
- Remote Config — Non-boolean config values.
- Role-Based Access — Fine-grained permissions.
- Scheduled Flags — Time-based flag changes.
- Segments — Rule-based targeting.
- Self-Hosting — Docker/Helm install.
- SSO + SAML — Enterprise SSO.
- Webhooks — Outbound event streaming.
Developer interfaces
| Kind | Rollbar | Flagsmith |
|---|---|---|
| CLI | — | Flagsmith CLI |
| SDK | rollbar-go, rollbar.js (browser), rollbar (Node), rollbar-php, rollbar (Python), rollbar (Ruby) | flagsmith-android, flagsmith-go, flagsmith-ios, flagsmith-java, flagsmith-js (browser), flagsmith-nodejs, flagsmith-python, flagsmith-ruby |
| REST | Rollbar REST API | Flagsmith REST API |
| OTHER | Rollbar Dashboard, Rollbar Webhooks | Flagsmith Dashboard, Flagsmith Webhooks |
Staxly is an independent catalog of developer platforms. Some links to Rollbar and Flagsmith may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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