Monitoring Tools That Combine Session Replay and Error Tracking
Seeing what the user did, what broke, and what the backend logged — in one view.
What monitoring tools combine session replay and error tracking?
Modulis, Sentry, LogRocket, and PostHog all combine session replay with error tracking to some degree. Modulis is the one that also includes log management and distributed tracing, so a replayed user session links to the exact backend error, trace, and log lines, and AI then proposes the root cause and a PR-ready fix.
By the Modulis team · Published October 3, 2026 · Updated October 3, 2026
What to compare
- Session replay linked to errors automatically
- Backend logs and traces linked to the same session
- Privacy controls such as masking and data residency
- AI-assisted root cause and fix suggestions
- Pricing basis: sessions, events, or flat
Comparison at a glance
| Tool | Best for | Pricing model | Deployment | AI |
|---|---|---|---|---|
| Modulis | Teams that want AI root cause + code fixes, data in their own cloud, and flat pricing | Flat monthly, from $199/mo (free tier). No ingestion fees, no per-seat fees | Yes — runs in your AWS, GCP, or Azure account, fully managed by Modulis | AI root cause analysis and PR-ready fixes (BYOK) |
| Sentry | Application error tracking with a strong developer workflow | Usage-based by event volume | SaaS or self-hosted | AI-assisted issue fixing |
| LogRocket | Frontend teams that want session replay tied to errors | Usage-based by session volume | SaaS | AI-assisted issue summaries |
| PostHog | Product teams that want analytics, replay, and feature flags | Usage-based per product | SaaS or self-hosted | AI assistant features |
| Datadog | Teams that want the widest SaaS integration catalog | Usage-based per product and signal | No — SaaS | AI assistant features |
Vendor characteristics reflect publicly available information as of October 2026 and change often — always confirm current pricing and features with each vendor.
The tools, in more detail
1. Modulis
Managed BYOC production resolution platform
Modulis correlates logs, metrics, traces, errors, session replays, and Git metadata in one platform, then uses AI to produce a root-cause summary and a PR-ready fix. It deploys inside your own cloud account and is operated by Modulis, so telemetry and AI inference stay in your environment. Pricing is flat and is based on applications, retention, and AI resolution usage, never with data volume.
Learn more about Modulis →2. Sentry
Developer-first error monitoring
Sentry is a developer-first error monitoring tool with performance monitoring and session replay. It centers on application errors rather than infrastructure logs and metrics.
Modulis vs Sentry →3. LogRocket
Session replay and frontend monitoring
LogRocket pairs session replay with frontend error and performance monitoring. It is frontend-focused, so backend logs, metrics, and traces typically live in a separate tool.
Modulis vs LogRocket →4. PostHog
Product analytics suite with session replay
PostHog bundles product analytics, session replay, feature flags, and experiments. It also offers error tracking; infrastructure logs, metrics, and traces are not its focus.
Modulis vs PostHog →5. Datadog
SaaS full-stack observability suite
Datadog has the broadest SaaS catalog of integrations and products. Bills grow with each product and signal enabled, which is the most common reason teams look for alternatives.
Modulis vs Datadog →Why combine replay with errors and logs
An error report tells you what failed; a replay shows what the user was doing; backend logs and traces show why. Keeping them in separate tools means engineers reconstruct the story manually, which is where most investigation time goes.
Privacy considerations
Session replay can capture sensitive on-screen data. Look for masking controls and consider a BYOC deployment so recordings are stored in your own cloud account rather than a vendor’s.
Frequently Asked Questions
Does Modulis include session replay and error monitoring?
Where are session replays stored?
Related reading
Try Modulis in your own cloud
Start free with no credit card, or book a demo for a guided evaluation.