Smartlook's real moat: mobile apps
Smartlook spent years building mature iOS and Android session replay SDKs. For product teams shipping native apps, Smartlook is one of a small handful of vendors that genuinely capture quality mobile replays — touch heatmaps, gesture playback, view hierarchy recording. If that is your use case, Smartlook is the right answer.
For everyone else — and that is most marketing teams — the mobile SDK is overhead you are not using. You are paying for a feature you do not deploy.
Where CloseTrace pulls ahead for web-first teams
Lead recovery as a first-class object. Smartlook captures form interactions as session events but does not assemble them into a durable "abandoned leads" inbox. CloseTrace treats form abandonment and partial form drafts as a top-level workflow with a dedicated dashboard, per-field metrics, and one-click jump into the source replay.
Multi-tenant team management. CloseTrace is built from the schema up for agencies and brand portfolios — one install, many sites, role-scoped access per org. Smartlook uses a project-based model that gets noisy past five sites.
Self-hosting. CloseTrace ships as Postgres + NestJS + Next.js + a vanilla TS tracker, and technical teams can deploy it on their own infrastructure today. Smartlook is fully managed and cannot be self-hosted.
Tracker bundle size. The CloseTrace web tracker is roughly one-third the size of the Smartlook web tracker, with zero third-party network calls and try/catch around every internal operation.
The honest decision
- Pick Smartlook if: you ship a native iOS or Android app and need session replay there, or you need a single vendor across web and mobile.
- Pick CloseTrace if: you are web-first, you run multiple sites, you care about recovering half-typed leads, or you need a self-host option for compliance.