Definite vs PostHog — Pricing, Plans, and Verified Costs (2026)
PostHog starts at Free. Definite uses custom pricing — request a quote to compare.
How pricing works
These two tools don't price the same way, so the headline numbers below aren't directly comparable until you plug in your own volume.
- Definite (Tiered) — Definite bills on a fixed plan, so the listed price is what you pay regardless of volume.
- PostHog (Per Usage) — PostHog bills purely on usage — Free up to 1M events/mo, then usage-based. There is no fixed per-seat fee, so the monthly cost depends entirely on how much you consume.
Per-minute, per-credit and per-token rates exclude any downstream model, speech or telephony costs unless the vendor states otherwise.
AI-native BI — connect your data warehouse (Snowflake, BigQuery, Redshift), ask questions in natural language, get dashboards. Pricing: Team $500/mo (up to 10 users), Business $2,000/mo (unlimited users + governance), Enterprise custom. Popular with mid-market data teams that want a modern BI layer without Looker's cost or complexity.
Open-source product analytics + feature flags + session replay + surveys, positioned as the all-in-one alternative to Mixpanel + LaunchDarkly + FullStory + Typeform. Distinctive for self-hostable free tier (unlimited events on your infra) and its "we're the open-source everything" positioning. Cloud priced free-$450+/mo based on events + recordings. Popular with technical founders who don't want to stitch 4 tools together and prefer OSS over vendor lock-in.
All plans compared
| Tier role | Plan | Definite monthly | Definite annual | PostHog monthly | PostHog annual |
|---|---|---|---|---|---|
| Free / starter | — / Free | — | — | Free | Free |
| Entry paid | Business / Boost add-on | $2000 | $1600 | $250 | — |
| Pro / power | — / Scale add-on | — | — | $750 | — |
| Teams | Team / — | $500 | $400 | — | — |
| Enterprise | Enterprise / Enterprise add-on | Custom | Custom | $2000 | Custom |
Tier names differ across vendors. Rows are aligned by tier role, not name. Full tier structures on each tool's page.
What each is best for
Definite is worth it if… mid-market companies that have a data warehouse and want an AI-native BI tool without Looker's implementation overhead. Team ($500/mo) suits early-stage; Business ($2K/mo) suits scale-ups.
PostHog is worth it if… product/growth teams that want product analytics + session replay + feature flags + A/B testing + surveys in one open-source platform — particularly if you value self-host option and pay-as-you-go pricing. Free tier includes 1M events + 5K replays/mo; pay-as-you-go beyond; add-ons for SSO/security/data warehouse.
Bottom line: Choose based on how you want to pay — Definite is tiered, PostHog is per usage.
Choose Definite over PostHog if…
Choose Definite if…
- You want fixed-price predictability (tiered, custom pricing).
- You match the profile Definite is built for: mid-market companies that have a data warehouse and want an AI-native BI tool without Looker's implementation overhead.
- You need a general-purpose analytics & data option rather than a vertical-specific one.
Choose PostHog if…
- You want to pay only for actual usage (per usage, a free entry tier).
- You match the profile PostHog is built for: product/growth teams that want product analytics + session replay + feature flags + A/B testing + surveys in one open-source platform — particularly if you value self-host option and pay-as-you-go pricing.
- You need a general-purpose analytics & data option rather than a vertical-specific one.
At a glance
| Definite | PostHog | |
|---|---|---|
| Free plan | No | Yes |
| Entry price | Custom | Free |
| Enterprise available | Yes | Yes |
| Pricing model | Tiered | Per Usage |
| Last verified | — | September 12, 2026 |
| Full pricing | View full pricing | View full pricing |
Pricing last verified September 12, 2026. Tracked daily.