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Technology · head to head

PostHog vs Superhuman

PostHog logo

PostHog

Technology

The single platform to analyze, test, observe, and deploy new features

From
Free
Rated
-
Full reviewWebsite
Superhuman logo

Superhuman

Technology

The fastest email experience ever made

From
$30/month
Rated
-
Full reviewWebsite

The short version

  • Only PostHog has a free tier, so it costs nothing to try first.
  • Each has a real cost: PostHog the free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts; Superhuman high pricing compared to free alternatives like Gmail
  • They diverge on capability: PostHog covers Product analytics, Superhuman covers Blazing fast performance.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which PostHog and Superhuman actually diverge.

Attributes where PostHog and Superhuman differ
AttributePostHogSuperhuman
Starting priceFree$30/month
Pricing modelusage-basedUnknown
Free tierYesNo
PlatformsWeb, Ios, Android, ApiWeb, iOS
Founded20202015

Identical on both: user rating (Not yet rated), category (Technology).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in PostHog

  • Product analytics
  • Session recording
  • Feature flags
  • A/B testing
  • Heatmaps
  • SQL access
  • Data warehouse
  • Apps platform

Only in Superhuman

  • Blazing fast performance
  • Keyboard-first design
  • AI-powered triage
  • Split inbox
  • Read statuses
  • Remind me later
  • Social insights
  • Calendar integration

Both cover

  • Slack
  • SOC2
  • 2FA
  • Cloud deployment

What people use each for

The jobs each tool is most often brought in to do.

PostHog

  • Product analyticsnot Superhuman
  • Feature experimentationnot Superhuman
  • User behavior trackingnot Superhuman
  • A/B testingnot Superhuman
  • Debug production issuesnot Superhuman

Superhuman

  • Email managementnot PostHog
  • Inbox zeronot PostHog
  • Team collaborationnot PostHog
  • Sales outreachnot PostHog
  • Executive communicationnot PostHog

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

PostHog

  • The free tier covers 1M events, 5K web session recordings and 2.5K mobile recordings per month before usage-based billing starts
  • Accounts without a card on file are limited to 1 project; adding one raises it to 6
  • Data retention is 1 year until a card is added, which extends it to 7 years
  • Support is community-only until the account is on a paid plan
  • Error tracking is capped at 100K exceptions and surveys at 1500 responses per month on the free tier

Superhuman

  • High pricing compared to free alternatives like Gmail
  • Lacks unified inbox for managing multiple email accounts in a single view
  • Limited calendar functionality compared to dedicated scheduling tools
  • No native task management features

Pricing, plan by plan

PostHog

Free
  • FreeFree
    • 1M events/month
    • 5K sessions/month
    • Unlimited users
  • Paid$undefined/month
    • $0.00031/event
    • $0.005/session
    • Advanced permissions
  • Enterprise$undefined/month
    • SAML SSO
    • Advanced security
    • Dedicated support

Superhuman

$30/month
  • Starter$30/month
    • Email productivity
    • Superhuman AI
    • Team collaboration
  • Business$40/month
    • Auto Drafts
    • Ask AI
    • CRM integrations

Which should you pick?

Choose PostHog if

  • You need product analytics.
  • You want to start without paying.
  • You work on Web, Ios, Android, Api.
  • You also want session recording.
PostHog review

Choose Superhuman if

  • You need blazing fast performance.
  • You work on Web, iOS.
  • You also want keyboard-first design.
Superhuman review

Questions people ask

Is PostHog or Superhuman better?
Neither clearly leads. PostHog starts at Free and Superhuman at $30/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostHog or Superhuman?
PostHog has a free tier; the other does not. Paid plans start at Free for PostHog and $30/month for Superhuman.
Does PostHog or Superhuman run on more platforms?
PostHog runs on Web, Ios, Android, Api. Superhuman runs on Web, iOS.
Can I use PostHog for free?
Yes. PostHog has a free tier, so you can try it without paying. Superhuman starts at $30/month.
What is PostHog best used for?
PostHog is most often used for product analytics, feature experimentation, user behavior tracking, a/b testing. Of those, product analytics and feature experimentation are not what Superhuman is typically brought in for.
What can PostHog do that Superhuman cannot?
PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Superhuman covers Blazing fast performance, Keyboard-first design, AI-powered triage, Split inbox. Both handle Slack, SOC2, 2FA, Cloud deployment.

Answered from the vendors’ own pages

PostHog: What does PostHog's free tier include per month?

PostHog free tier includes: 1M analytics events, 5K session replays, 1M feature flag requests, 100K error tracking exceptions, 1,500 survey responses, 1M data warehouse rows, 10K data pipeline events, 100K AI observability events, 500 PostHog AI credits, 10K workflow messages, and 10GB log ingestion. Source: https://posthog.com/pricing

Source
Superhuman: How much does Superhuman cost?

Superhuman offers three plans: Starter at $30/user/month, Business at $40/user/month, and Enterprise with custom pricing. Annual billing provides approximately 16.7% savings, bringing the Starter plan to $25/month.

Source
PostHog: How much data retention does PostHog provide on paid plans?

PostHog free tier provides 1-year data retention. Pay-as-you-go plans offer 7-year data retention across all projects, enabling longer historical analysis. Source: https://posthog.com/pricing

Source
Superhuman: What email platforms does Superhuman work with?

Superhuman is compatible with Gmail and Outlook, and integrates with Google Calendar and Akiflow for calendar and task planning workflows.

Source
PostHog: What percentage of PostHog users stay on the free tier?

PostHog states that 97% of companies use PostHog for free, indicating extensive free tier adoption. However, specific per-unit pricing rates for overages on paid plans are not published. Source: https://posthog.com/pricing

Source
Superhuman: Does the Business plan include CRM integrations?

Yes, the Business plan at $40/month unlocks CRM integrations with HubSpot and Salesforce, along with advanced AI features like Auto Drafts and Ask AI.

Source
PostHog: When does PostHog provide priority support on paid plans?

PostHog provides email or Slack support for accounts exceeding $2,000/month on pay-as-you-go plans. Specific response times and support SLAs are not detailed on their pricing page. Source: https://posthog.com/pricing

Source
Superhuman: What happened to Superhuman after the Grammarly acquisition?

Superhuman was acquired by Grammarly on July 1, 2025. The company now operates under the Superhuman name while integrating with Grammarly's AI platform.

Source
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