Side-by-side comparison · SEO & Analytics
Amplitude vs Moz vs PostHog
Everything that matters when choosing between them, in one place: our rating, what each can do, what they cost, and the trade-offs.
Comparing 3 tools, the maximum.
At a glance
Pick it if: Product and growth teams at apps and SaaS companies who want deep analytics and AI that spots changes for them.
Pick it if: Small businesses, freelancers and in-house marketers who want a friendlier, cheaper SEO toolkit than Ahrefs or Semrush.
Pick it if: Founders and product teams with a web app or SaaS who want analytics, replays and testing in one tool.
Overview
| Attribute | Amplitude | Moz | PostHog |
|---|---|---|---|
| In one line | Product analytics with AI agents that watch your numbers and flag changes for you. | A long-running SEO toolkit for keywords, links and rankings, known for Domain Authority. | Product analytics, session replays, A/B tests and surveys in one tool, with an AI analyst. |
| Pricing model | Freemium | Paid | Freemium |
| Starting price | First 2M events free | $49/mo | $0/mo base |
| Free plan | Yes | No | Yes |
| Works with Claude Code | Yes | Yes | Yes |
Rating breakdown
Our scores out of 5. The higher bar in each row is highlighted.
| Attribute | Amplitude | Moz | PostHog |
|---|---|---|---|
| Overall rating | 4.0 | 3.9 | 4.2Winner |
| Ease of useHow quickly someone non-technical gets value from it. | 3.0 | 4.0 | 3.0 |
| FeaturesHow completely it covers its own job, and how well the pieces fit together. | 4.5 | 4.0 | 5.0 |
| Output qualityHow good the results are before you fix them. | 4.5 | 4.0 | 4.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.0 | 3.5 | 4.5 |
| Speed & reliabilityHow fast it is and how often it falls over. | 4.0 | 4.0 | 4.0 |
Feature comparison
A tick means it does this today. A dash means we haven't checked.
| Attribute | Amplitude | Moz | PostHog |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | No | Yes |
| Mobile app | No | No | No |
| Desktop app | No | No | Yes |
| Browser extension | No | Yes | No |
| API access | Yes | Yes | Yes |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | Yes | – | Yes |
| Connects to other apps | Yes | Yes | Yes |
| Open source or self-hosted | No | No | Yes |
| AI abilities | |||
| Works with your files | No | No | No |
| Understands images | – | – | – |
| Makes images | No | No | No |
| Makes video | No | No | No |
| Writes code | No | No | Yes |
| Runs agents or automations | Yes | No | Yes |
| Learns your brand or style | – | – | – |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 7/ 17 | 5/ 17 | 10/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Amplitude | Moz | PostHog |
|---|---|---|---|
| Plans | FreeOur pick Free Startups and small apps. | Starter $49/mo A single small site. | Free Free Small apps and getting started. |
Plus First 2M events free, then usage-based Growing teams that need more charts and history. | StandardOur pick $99/mo Small businesses doing regular SEO. | Pay as you goOur pick $0/mo base, then per use Growing apps that outgrow the free limits. | |
Growth Custom Product teams at scale. | Medium $179/mo In-house teams and freelancers with several sites. | Boost $250/mo plus usage Teams that need SSO enforcement or HIPAA. | |
Enterprise Custom Large organisations. | Large $299/mo Agencies. | Scale $750/mo plus usage Larger organisations. | |
Enterprise $2,000/mo plus usage Big companies. | |||
| Which plan to pick | Start on Free, which includes the AI agents and MCP. Move to Plus when you need custom events, cohorts or alerts. Growth and Enterprise are for larger product teams and need a sales call. | Try the free MozBar and Domain Authority checks first. If you want rank tracking and site audits for one business, Standard is the sensible plan, and paying yearly saves about 20%. Plan limits change often, so compare them on Moz's pricing page before you buy. | Start free. Add a card to move to pay as you go when you need more projects or longer history, and set billing limits on each product so nothing runs away. The platform packages only matter for compliance or big teams. |
Key features
| Attribute | Amplitude | Moz | PostHog |
|---|---|---|---|
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Pros and cons
| Attribute | Amplitude | Moz | PostHog |
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Who each one is for
| Attribute | Amplitude | Moz | PostHog |
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Questions people ask
Which is better, Amplitude, Moz or PostHog?
PostHog scores highest overall in our ratings (Amplitude 4.0/5, Moz 3.9/5 and PostHog 4.2/5). Amplitude is best for deep product analytics for apps and AI agents that flag metric changes. Moz is best for Checking Domain Authority and backlinks and keyword research for beginners. PostHog is best for seeing how people use your app and finding where sign-ups and checkouts drop off.
Which is cheaper, Amplitude, Moz or PostHog?
Amplitude: There's a free plan, and paid plans start at First 2M events free. Moz: There's no free plan. Paid plans start at $49/mo. PostHog: There's a free plan, and paid plans start at $0/mo base.
Which is easier to use, Amplitude, Moz or PostHog?
Moz rates highest for ease of use in our scores. Small businesses, freelancers and in-house marketers who want a friendlier, cheaper SEO toolkit than Ahrefs or Semrush.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
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