PostHog vs RudderStack
PostHog and RudderStack are both analytics tools aimed at developers and small businesses. Both have a free plan.
Open-source product analytics, replays and flags
Warehouse-native customer data pipelines, a Segment alternative
| Pricing | Freemium | Freemium · $265 |
| Starting price | Not published | $265/mo |
| Free plan | Yes | Yes |
| Free trial | — | 30 days |
| Built for | Developers, Small businesses | Developers, Small businesses, Enterprise |
| Platforms | web | web |
| Country | US · 2020 | US · 2019 |
| 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 RudderStack if
Data and engineering teams with a cloud warehouse that want a developer-friendly, cost-controlled Segment alternative.
- Warehouse-first design keeps customer data in your own infrastructure
- Generous free tier of 250K events per month
- Event-based pricing usually undercuts Segment at similar volumes
Look elsewhere if: Marketing teams without engineering support or companies without a data warehouse (Segment, Customer.io, Hightouch).
PostHog vs RudderStack 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
RudderStack
- Free$0250K events/mo, 10 reverse ETL connections, 5 transformations
- Growth$265/mo1M events/mo; 15% off annually; scales to 25M events
- EnterpriseCustom5-min warehouse sync, Profiles, HIPAA, SSO, VPC deployment
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
RudderStack · Key features
- Event stream SDKs for web, iOS, Android and server languages
- Over 200 cloud destinations plus warehouse and data lake loading
- Reverse ETL that syncs warehouse tables back to SaaS tools
- JavaScript and Python transformations on events in flight
- Tracking plans that validate event schemas and catch bad data
- Profiles for identity resolution and customer 360 tables in the warehouse
Cons
- Needs engineering ownership; less marketer-friendly than Segment
- Profiles, HIPAA and VPC deployment are Enterprise-only
- Elastic License 2.0 is not an OSI open-source license
PostHog vs RudderStack: FAQ
Do PostHog and RudderStack have a free plan?
Yes, both PostHog and RudderStack have a free plan; paid plans add more usage and features.