Softwr

Software · head to head

PostHog vs Principle

PostHog logo

PostHog

Software

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

From
Free
Rated
-
Full reviewWebsite
P

Principle

Software

Animate your ideas, design better apps

From
$129/one-time
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; Principle macOS only with no Windows or Linux editor available
  • They diverge on capability: PostHog covers Product analytics, Principle covers Timeline-based animation.

Where they differ

Only the attributes on which PostHog and Principle actually diverge.

Attributes where PostHog and Principle differ
AttributePostHogPrinciple
Starting priceFree$129/one-time
Pricing modelusage-basedUnknown
Free tierYesNo
PlatformsWeb, Ios, Android, ApimacOS
Founded20202015

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

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 Principle

  • Timeline-based animation
  • Interactive prototypes
  • Touch gestures
  • Component reuse
  • Video export
  • Sketch import
  • Figma import
  • Driver animations

What people use each for

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

PostHog

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

Principle

  • Mobile app prototypesnot PostHog
  • Micro-interactionsnot PostHog
  • Animation designnot PostHog
  • User flow designnot PostHog
  • Gesture-based interfacesnot 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

Principle

  • macOS only with no Windows or Linux editor available
  • No vector morphing capability for complex shape transformations
  • Limited asset creation tools; cannot create vectors or shapes directly within Principle
  • Sketch import flattens certain properties including paths, fills, borders, masks, blur effects, and text layers
  • Limited variable support, logical loops, and data input capabilities compared to tools like ProtoPie or Origami

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

Principle

$129/one-time
  • License$129/one-time
    • One year of upgrades
    • Full access to all features
  • Upgrade License$99/year
    • Annual renewal for ongoing upgrades

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 Principle if

  • You need timeline-based animation.
  • You work on macOS.
  • You also want interactive prototypes.
Principle review

Questions people ask

Is PostHog or Principle better?
Neither clearly leads. PostHog starts at Free and Principle at $129/one-time, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PostHog or Principle?
PostHog has a free tier; the other does not. Paid plans start at Free for PostHog and $129/one-time for Principle.
Does PostHog or Principle run on more platforms?
PostHog runs on Web, Ios, Android, Api. Principle runs on macOS.
Can I use PostHog for free?
Yes. PostHog has a free tier, so you can try it without paying. Principle starts at $129/one-time.
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 Principle is typically brought in for.
What can PostHog do that Principle cannot?
PostHog covers Product analytics, Session recording, Feature flags, A/B testing. Principle covers Timeline-based animation, Interactive prototypes, Touch gestures, Component reuse.

Answered from the vendors’ own pages

Principle: Does Principle run on Windows or Linux?

No. Principle is macOS only and runs on Intel and Apple Silicon Macs. There is no Windows or Linux editor available; however, prototypes can be shared and viewed on any platform via web link.

Source
Principle: What is the cost of Principle?

Principle costs $129 for a one-time purchase with 1 year of upgrades included. After 1 year, upgrade licenses cost $99/year. A 14-day free trial is available with all features included.

Source
Principle: Can I import designs from Figma or Sketch into Principle?

Yes. Principle supports importing designs from Figma and Sketch with intelligent merging of re-imported files. Some Sketch properties such as paths, fills, borders, blur effects, masks, and text layers are flattened upon import.

Source
Principle: How do I share Principle prototypes with others?

Prototypes can be shared via web link with one click (File > Export > Share to Web). Recipients can view and interact with prototypes in any browser on any platform: Windows, macOS, Linux, Android, or iOS. No installation required.

Source
Principle: Can I create vector shapes and morphing animations in Principle?

Principle does not support vector morphing, where vector objects transform into other vector shapes. It also has limited asset creation capabilities and editing is restricted to basic operations like scale and rotate.

Source
ShareXLinkedInRedditWhatsAppEmail

Related pages

More on PostHog

More on Principle

Keep looking

Other head to heads