Side-by-side comparison · SEO & Analytics
Amplitude vs Frase 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 marketing teams, freelancers and agencies who write SEO content and want research, briefs and drafts in one place.
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 | Frase | PostHog |
|---|---|---|---|
| In one line | Product analytics with AI agents that watch your numbers and flag changes for you. | Researches, briefs and drafts SEO articles, and tracks if AI search cites you. | 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 | Frase | PostHog |
|---|---|---|---|
| Overall rating | 4.0 | 4.0 | 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 | 4.5 | 5.0 |
| Output qualityHow good the results are before you fix them. | 4.5 | 3.5 | 4.5 |
| Value for moneyWhat you get for the price, including the free plan. | 4.0 | 4.0 | 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 | Frase | PostHog |
|---|---|---|---|
| Access & platform | |||
| Free plan | Yes | No | Yes |
| Mobile app | No | – | No |
| Desktop app | No | – | Yes |
| Browser extension | No | – | No |
| API access | Yes | Yes | Yes |
| Teams & business | |||
| Team workspace | Yes | Yes | Yes |
| Enterprise plan or SSO | Yes | 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 |
| Understands images | – | – | – |
| Makes images | No | No | No |
| Makes video | No | No | No |
| Writes code | No | No | Yes |
| Runs agents or automations | Yes | Yes | Yes |
| Learns your brand or style | – | Yes | – |
| Works in many languages | Yes | Yes | Yes |
| Capabilities score | 7/ 17 | 7/ 17 | 10/ 17 |
Pricing
Plans as listed on each vendor's site when we last checked. Confirm before you buy.
| Attribute | Amplitude | Frase | PostHog |
|---|---|---|---|
| Plans | FreeOur pick Free Startups and small apps. | Starter $49/mo, or $39/mo billed yearly One person writing a few articles a month. | Free Free Small apps and getting started. |
Plus First 2M events free, then usage-based Growing teams that need more charts and history. | ProfessionalOur pick $129/mo, or $103/mo billed yearly Small teams publishing weekly. | Pay as you goOur pick $0/mo base, then per use Growing apps that outgrow the free limits. | |
Growth Custom Product teams at scale. | Scale $299/mo, or $239/mo billed yearly Agencies running several sites. | Boost $250/mo plus usage Teams that need SSO enforcement or HIPAA. | |
Enterprise Custom Large organisations. | Enterprise Custom Large teams needing white-label and SSO. | 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. | Professional is the plan most teams settle on, because Starter's 10 articles a month runs out quickly. Try the 7-day trial on two or three real articles before paying. | 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 | Frase | PostHog |
|---|---|---|---|
| Standout features |
|
|
|
Pros and cons
| Attribute | Amplitude | Frase | PostHog |
|---|---|---|---|
| Pros |
|
|
|
| Cons |
|
|
|
Who each one is for
| Attribute | Amplitude | Frase | PostHog |
|---|---|---|---|
| Best for |
|
|
|
| You'll find it used by |
|
|
|
Questions people ask
Which is better, Amplitude, Frase or PostHog?
PostHog scores highest overall in our ratings (Amplitude 4.0/5, Frase 4.0/5 and PostHog 4.2/5). Amplitude is best for deep product analytics for apps and AI agents that flag metric changes. Frase is best for Building SEO content briefs fast and drafting articles from a brief. PostHog is best for seeing how people use your app and finding where sign-ups and checkouts drop off.
Which is cheaper, Amplitude, Frase or PostHog?
Amplitude: There's a free plan, and paid plans start at First 2M events free. Frase: 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, Frase or PostHog?
Frase rates highest for ease of use in our scores. Small marketing teams, freelancers and agencies who write SEO content and want research, briefs and drafts in one place.
How we compare
Ratings are our own, from using each tool, across ease of use, features, output quality, value for money, speed & reliability.
Swap in another tool
More tools from SEO & Analytics in the library.
