Mailtrap vs PostHog
Side-by-side plans, pricing, and feature gates for Mailtrap and PostHog, verified . Mailtrap is primarily deliverability; PostHog is primarily analytics.
Plans side by side
Every published plan from each vendor, with the headline monthly anchor price. Some prices scale with subscriber count or seats; full detail lives on each tool's page.
Mailtrap
- Free
4,000 emails per month for hobby projects and early validation
Free - Basic
Entry paid Email API tier scaling from 10k to 100k emails per month
$15/mo - Business
Best value
$85/mo - Enterprise
1.5M+ emails per month with priority support and custom contracting
Custom
PostHog
- Free + Pay-as-you-go
Generous free tier across every product
Free - Boost
Add-on: Boost
$250/mo - Scale
Add-on: Scale
$750/mo - Enterprise
Add-on: Enterprise
Custom
Limits at the entry paid tier
Compares Basic (Mailtrap) against Boost (PostHog). Both are the lowest-priced non-free, non-custom plan on each side.
| Limit | Mailtrap | PostHog |
|---|---|---|
| Emails / month | 100,000 emails (entry $15 covers 10k; scales to $30 at 100k) | · |
| Team seats | 3 | · |
When Mailtrap wins
- Dev teams that want one vendor for both email testing and production sending
- SaaS startups under 100k/month Email API volume who can ride the Basic tier ramp
- Teams that need a dedicated IP without paying for SendGrid Pro or higher
Where Mailtrap is the wrong fit
- Marketing-only teams (use Mailchimp or Kit)
- Buyers who want flat predictable per-tier pricing (Postmark is more predictable)
- Enterprises needing voice or SMS in the same platform (use Twilio or SendGrid)
When PostHog wins
- Technical product teams that want one tool covering analytics, experiments, replay, and surveys
- Startups under 1M events per month, where the free tier covers the entire stack
- Companies committed to open-source infrastructure who want the option to self-host
Where PostHog is the wrong fit
- Marketing-only teams who need attribution and campaign analytics (Mixpanel or GA4 fit better)
- Enterprises with strict procurement that requires a SaaS-only vendor with no self-hosted option in scope
- Non-technical users who cannot navigate event-based analytics UIs and SQL-style insights
Common questions
- Is Mailtrap cheaper than PostHog?
- Both Mailtrap and PostHog have free or custom entry pricing, so a direct entry-tier price comparison is not meaningful.
- Does Mailtrap or PostHog have a free plan?
- Both have free plans. Mailtrap: 4,000 emails per month for hobby projects and early validation. PostHog: Generous free tier across every product.
- Are Mailtrap and PostHog in the same category?
- No. Mailtrap is primarily a deliverability tool; PostHog is primarily a analytics tool. They overlap on use case but sit in different primary categories, so the comparison is between adjacent tools rather than direct competitors.
- Which has more plans, Mailtrap or PostHog?
- Both Mailtrap and PostHog ship 4 plans. Tier counts match; the differentiation is in features and pricing structure rather than tier ladder depth.
- Where can I see alternatives to Mailtrap or PostHog?
- Each tool has a dedicated alternatives page on TierGauge with ranked options and verified pricing: /alternatives/mailtrap for Mailtrap and /alternatives/posthog for PostHog. Alternatives are derived from each tool's editor-flagged competitors plus same-category tools we track.
Mailtrap: https://mailtrap.io/pricing/ · PostHog: https://posthog.com/pricing
Last verified . Pricing changes between refreshes; confirm at the vendor before purchasing.