PostHog vs Salience
PostHog and Salience are both analytics tools. PostHog is aimed at developers and small businesses, while Salience is aimed at agencies and small businesses. Both have a free plan.
Open-source product analytics, replays and flags
Log analytics that shows how bots, AI crawlers and users hit your site
| Pricing | Freemium | Freemium · $19 |
| Starting price | Not published | $19/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Built for | Developers, Small businesses | Agencies, Small businesses, E-commerce, Developers, Enterprise |
| Platforms | web | web |
| Country | US · 2020 | GB · 2026 |
| Rating | — | — |
Choose PostHog if
Engineering-led startups and scale-ups that want analytics, replay, flags and experiments without three vendors.
- Several products in one with shared data
- Generous free allowances; usage-based beyond
- Open source and engineer-friendly
Look elsewhere if: Marketing-only web analytics (Plausible) or large enterprises standardized on Amplitude.
Choose Salience if
Technical SEO teams and agencies that want continuous log analysis of search and AI crawler traffic.
- Shows real crawler behaviour that JavaScript analytics never sees
- Free plan includes the API and MCP server
- Works on Cloudflare's free plan through a Worker
Look elsewhere if: Marketers who only need visitor analytics or a site crawler (Plausible, Screaming Frog SEO Spider).
PostHog vs Salience pricing
PostHog
- Free$01M events, 5K recordings, 1M flag requests, 1,500 survey responses/mo
- Pay-as-you-gofrom $0.00005/per eventPer product after free tier, as low as $0.000009/event; billing limits
- Boost$250/moPlatform package: unlimited projects, SSO enforcement, HIPAA BAA
- Scale$750/moPriority support, SAML; includes Boost
- EnterpriseCustomRBAC, dedicated support, training
Salience
- Free$01 site, 500K requests/mo, 30 days of history
- Solo$19/mo1 site, 1 user, 5M requests, 6 months history; 2 months free yearly
- Starter$49/mo5 sites, 20M requests, 1 year history, webhooks; 2 months free yearly
- Growth$149/mo15 sites, 100M requests, 2 years history; 2 months free yearly
- Pro$499/mo50 sites, 500M requests, 4 years history, shared Slack support
PostHog · Key features
- Product analytics: funnels, retention, paths, trends, lifecycle
- Session replay with console and network logs
- Feature flags and multivariate experiments
- Surveys and in-app feedback
- Data warehouse, HogQL SQL and CDP destinations
- Error tracking and LLM observability
Cons
- UI can feel dense; analytics UX trails Amplitude
- Costs need monitoring across many products
- Self-hosting only recommended for small scale
Salience · Key features
- Analysis of every request from CDN or server logs, with no sampling by Salience
- Crawler verification against official IP ranges to expose spoofed user agents
- Recognition of 200+ bots, with AI crawlers grouped by training, search or user fetch
- Requests linked to paths, status codes, sitemaps, robots.txt rules and index state
- Alerts checked every minute; Slack from Solo, webhooks from Starter
- REST API, CLI and MCP server on every plan, including Free
Cons
- Company incorporated in August 2026, so there is little track record
- Core data is hosted in AWS London (eu-west-2), with no other region offered
- Vercel needs a Pro or Enterprise team and Netlify works only on Enterprise
PostHog vs Salience: FAQ
Do PostHog and Salience have a free plan?
Yes, both PostHog and Salience have a free plan; paid plans add more usage and features.