StackBest monitoring, errors & logs for solo founders
When your app breaks at 2am, you want to know before your users tweet about it. This category covers three jobs that often get bundled together: error tracking (what crashed and why), logs (what happened before it crashed), and uptime monitoring (is the site even up). As a solo founder you can cover all three for close to $0 if you pick tools with real free tiers and avoid usage-based bills that spike when your app misbehaves.
| Tool | Free tier | Paid from | Best for |
|---|---|---|---|
 Sentry$26/mo | $26/mo | Any solo founder shipping to production; start on the free Developer plan and set client-side sample rates before you ever pay | |
| $25/mo platform fee | Founders who want serious log search and retention for free and are happy pairing it with a separate error tracker | ||
 Better Stack$25/mo for 50 extra uptime monitors | $25/mo for 50 extra uptime monitors | Founders who want fast free uptime checks and a polished public status page without paying anything | |
| Discontinued | Nobody new in 2026; existing users should migrate to LaunchDarkly Observability or switch to Sentry for replay plus errors | ||
 LogSnag$16/mo | $16/mo | Founders who want real-time push notifications for business events (new sale, new signup), as a companion to real monitoring tools | |
 Checkly$24/mo | $24/mo | Founders whose revenue depends on a multi-step flow (signup, checkout) working end to end, not just the homepage loading | |
 UptimeRobot8 euros/mo Solo | 8 euros/mo Solo | Founders who want set-and-forget uptime alerts across many small projects for free |
The solo founder stack here is close to free: Sentry's Developer plan for errors and session replays (its 1-user limit does not matter when you are the only user), Axiom's free 500 GB/mo for logs, and UptimeRobot's 50 free monitors or Better Stack's 10 free monitors with 3-minute checks and a status page. That covers errors, logs, and uptime for $0/mo.
Pay when a limit actually bites: $26/mo for Sentry Team when you outgrow 5k errors, or $24/mo for Checkly Starter once a revenue-critical checkout flow justifies real browser checks. Skip Highlight.io entirely (shut down February 2026) and treat LogSnag as an optional $0-16/mo dopamine layer, not monitoring.
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