Sentry is still the most complete error monitoring platform in 2026 — but it’s no longer the only choice. Highlight.io has emerged as a strong alternative combining errors, session replay, and logging. BetterStack is excellent for uptime monitoring and log management.
Sentry — Most Complete
Pricing: Free: 5K errors/month, 1 user. Team: $26/month (100K errors). Business: $80/month.
Sentry captures errors, performance issues, and release tracking. It traces an error back to the exact line of code, shows the user’s browser, session information, and the breadcrumb trail of events leading to the crash.
Key features:
- Error grouping and deduplication (so 10,000 users hitting the same bug is one issue, not 10,000)
- Performance monitoring and transaction tracing
- Release health tracking (did the new deploy cause more errors?)
- Session replay (watch the user’s screen leading up to the crash)
- Alerting rules and team assignment
Best for: Teams that want the most comprehensive error intelligence in a single tool.
Highlight.io — Best Session Replay + Errors
Pricing: Free: 500 sessions, 1,000 errors. Basic: $50/month. Pro: $150/month.
Highlight.io combines three tools in one: error monitoring, session replay, and logging. It’s open source and can be self-hosted.
The session replay is native — you can watch a user’s exact session alongside the errors they encountered, with their network requests and console logs visible in the timeline.
Best for: Product teams where understanding user behavior around errors is as important as the errors themselves.
BetterStack — Best for Logs + Uptime
Pricing: Free uptime monitoring. Logs: from $24/month.
BetterStack covers two different concerns: uptime monitoring (pinging your endpoints and alerting when they’re down) and log management (structured log aggregation and search).
The uptime monitoring is excellent and includes on-call scheduling, incident management, and public status pages. The log management ingests structured logs and makes them searchable with a clean UI.
Best for: Teams that need uptime monitoring and log management. Often used alongside Sentry for errors.
Axiom — Best Log Management
Pricing: Free: 500GB/month ingest. Pro: $25/month.
Axiom is a log analytics platform that ingests massive volumes of logs at very low cost. If you’re running background jobs, API services, or high-traffic systems, Axiom handles the log volume that would be expensive in Datadog or Splunk.
Best for: High-log-volume applications where cost-effective log retention and search is the primary need.
LogSnag — Best for Business Events
Pricing: Free: 1 project. Pro: $9/month.
LogSnag is for tracking business events, not errors. “User signed up,” “subscription upgraded,” “payment failed” — LogSnag gives you a real-time feed of what’s happening in your business, delivered to Slack or a dashboard.
Best for: Founders who want visibility into business activity without building a custom analytics dashboard.
The Stack We Recommend
For a SaaS product at early stage:
- Sentry (free tier) — error monitoring
- BetterStack (free tier) — uptime monitoring + status page
- PostHog (free tier) — product analytics and session recording
This covers errors, uptime, and user behavior for $0/month until you need to scale.
At Whipp Studio, we set up this stack as part of every project delivery so founders have visibility from day one.
Frequently Asked Questions
Is Sentry free for small projects? Yes. Sentry’s free tier includes 5,000 errors per month and one developer seat. Plenty for an early-stage SaaS.
Do I need both Sentry and BetterStack? They solve different problems. Sentry catches code errors. BetterStack tells you when your site is down. Both are worth running together — one tells you something is broken, the other tells you nothing is reachable.
What’s the difference between error monitoring and logging? Error monitoring captures exceptions and crashes with context (stack trace, user info, breadcrumbs). Logging is structured records of application events. You need both — errors for debugging crashes, logs for understanding what happened.
How do I add Sentry to a Next.js project?
Run npx @sentry/wizard@latest -i nextjs. It adds the Sentry SDK and wraps your routes automatically. Takes 10 minutes.
Should I self-host error monitoring? Only if you have strict data residency requirements. Self-hosting Sentry is complex — you need to maintain PostgreSQL, Redis, Kafka, and ClickHouse. The managed cost is almost always lower than the ops overhead.
Shipping a SaaS and need proper monitoring from day one? At Whipp Studio, error monitoring and observability are part of every project handoff. Book a free strategy call →