Mailgun vs PostHog
Side-by-side plans, pricing, and feature gates for Mailgun and PostHog, verified . Mailgun is primarily transactional email; 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.
Mailgun
- Free
Hobby tier capped at 100 emails per day
Free - Basic
Entry paid tier with 10,000 emails/month included
$15/mo - Foundation
50,000 emails/month with template builder and full inbound routing
$35/mo - Scale
100,000 emails/month with SAML SSO, dedicated IP, and live support
$90/mo - Enterprise
Custom contracting for high-volume senders
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 (Mailgun) against Boost (PostHog). Both are the lowest-priced non-free, non-custom plan on each side.
| Limit | Mailgun | PostHog |
|---|---|---|
| Emails / month | 10,000 | · |
When Mailgun wins
- Developers integrating receipts, notifications, and password-reset emails
- Teams already on a marketing ESP that need a separate transactional channel
- High-volume B2B applications with strict deliverability requirements
Where Mailgun is the wrong fit
- Marketing teams seeking campaign tooling (use Mailchimp or Kit)
- Creators sending newsletters (use Kit or beehiiv)
- Free-tier hobbyists with low total volume but spiky daily-cap-bumping use cases
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 Mailgun cheaper than PostHog?
- Both Mailgun and PostHog have free or custom entry pricing, so a direct entry-tier price comparison is not meaningful.
- Does Mailgun or PostHog have a free plan?
- Both have free plans. Mailgun: Hobby tier capped at 100 emails per day. PostHog: Generous free tier across every product.
- Are Mailgun and PostHog in the same category?
- No. Mailgun is primarily a transactional email 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, Mailgun or PostHog?
- Mailgun ships 5 plans; PostHog ships 4. Mailgun's longer ladder gives more granular upgrade steps, which can mean smoother price escalation as your team scales.
- Where can I see alternatives to Mailgun or PostHog?
- Each tool has a dedicated alternatives page on TierGauge with ranked options and verified pricing: /alternatives/mailgun for Mailgun and /alternatives/posthog for PostHog. Alternatives are derived from each tool's editor-flagged competitors plus same-category tools we track.
Mailgun: https://www.mailgun.com/pricing/ · PostHog: https://posthog.com/pricing
Last verified . Pricing changes between refreshes; confirm at the vendor before purchasing.