Product analytics tools compared: PostHog, Mixpanel, Amplitude
Product analytics tools measure what people do inside a software product: the actions they take, who takes them, and what those people and actions have in common. PostHog, Mixpanel and Amplitude are the best-known examples, and each reads mobile apps as well as websites. Convertlyft is not one of them. It is website analytics for one website: why visitors leave, what broke, and what to change. This page compares the three honestly and says where each one fits.
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Product analytics or website analytics?
The two answer different questions. Product analytics follows a person through a product they use again and again, often signed in: which features they use, whether they come back next week, which group of people stays. Website analytics follows visits to a site: where visitors came from, which pages they read, where they left before buying or getting in touch, and why.
| You want to know | Product analytics | Website analytics |
|---|---|---|
| Do people come back and keep using a feature? | Built for this: events tied to each person over time | Not its job |
| Why don't visitors buy or get in touch? | Possible, once you plan and send the events | Built for this: funnels, recordings, heatmaps and errors on the pages people visit |
| Does it read a mobile app? | PostHog, Mixpanel and Amplitude all offer mobile installs | Convertlyft does not: it has no mobile app SDK |
| Do I need to plan what to track first? | Usually: the events you send decide the reports you get | Less: Convertlyft reads page views, forms, clicks and errors from one line of code |
PostHog, Mixpanel and Amplitude, side by side
Each fact links to the vendor's own page. Free allowances are what each pricing page names as free; we print no prices.
| Compared on | PostHog | Mixpanel | Amplitude |
|---|---|---|---|
| What it offers | Product analytics, replays (session replay), feature flags, experiments, surveys and a data warehouse, in one product[1] | Calls itself a product intelligence platform combining analytics, replays (session replay), experiments and feature flags[4] | Product analytics, replays (session replay), feature experimentation and management, guides and surveys, plus web analytics and heatmaps[7] |
| Built around | Events: its free allowance is counted in events[2] | Three concepts: events, users and properties[5] | Events: its free plan is counted in events a month[8] |
| Mobile apps | Its replay page lists Android, iOS, Flutter and React Native[3] | Its menu names Mobile Analytics beside Web Analytics[4] | Its SDK catalog lists Android, iOS, React Native and Flutter beside the browser[9] |
| Free allowance | 1M events, 5K recordings (session replays) and 1M feature flag requests free every month[2] | A free plan of up to 1M events a month[6] | A free plan of 2M events a month and 10K recordings (session replays) a month[8] |
Facts as of 31 October 2026, from each vendor's own pages; each number in brackets links to the source below. Products and plans change, so check their pages before you decide.
When PostHog, Mixpanel or Amplitude is the better choice
- You measure a mobile app. All three list mobile installs. Convertlyft reads websites only.
- Your product is used again and again by signed-in people. Product analytics is built to follow one person over weeks and to compare groups of people. That is not what Convertlyft is for.
- You ship with feature flags and experiments. PostHog and Mixpanel name both on their own pages; Amplitude names feature experimentation and feature management. Convertlyft does not switch features on or off.
- You want surveys, in-app guides or a data warehouse in the same product. PostHog names surveys and a warehouse; Amplitude names guides and surveys. Convertlyft has no surveys.
If one of these is your main question, pick between those three. Our PostHog alternative and Mixpanel alternative pages compare each one with Convertlyft in more detail.
Where Convertlyft fits
Convertlyft is for one website: a shop, a lead-generation site, or the marketing site in front of a product. It answers why visitors don't buy, sign up or get in touch, and what to change first.
- One line, then reports. Paste one line of code, or install the WordPress plugin. Page views, forms started and left (with the last field typed in, its name and type, never its value), clicks that did nothing, repeated clicks and errors are read with no extra code. Counting sales on a site that is not on Shopify needs a
convertlyft.track()call. - Every visit recorded. Every visit is recorded on every plan, short ones too, up to a safety limit of 50,000 new recordings per site per day. Replays are kept 90 days and what visitors did 24 months.
- Funnels set up for you. Your main funnel is set up from your site's type. Add your own of up to 6 steps, split by phones and computers, and compare with the period before. See funnel analysis.
- Why, not only how many. Heatmaps, visit recordings, JavaScript errors grouped into issues, and Core Web Vitals from real visits.
- What to change. What to do lists to-dos, each with the numbers behind it and one change to make where there is one. A report arrives every Monday at 07:30, your time.
- SEO beside the visits. Rankings, a site audit by our own crawler, and your Search Console searches next to the visits they bring.
Visitors stay anonymous unless your site tells Convertlyft who they are, for example when someone signs in. More on how Convertlyft works.
Using both
Many teams have a product that people sign in to and a website in front of it. A product analytics tool can read the product while Convertlyft reads the website. Convertlyft's line runs beside other analytics code, so you do not have to remove anything to try it.
Questions to ask any analytics tool before you choose
- Does it read the thing you ship: a website, a mobile app, or both?
- What do you have to plan and send before the first report means anything?
- Does it count every visit, or a sample?
- How is the free allowance counted: events, recordings, or visits?
- Does each number link to the visits or people behind it?
- Does it tell you what to change, or leave that to you?
Comparing more widely? See our guides to web analytics platforms and free website analytics.
Questions
What is a product analytics tool?
Software that records the actions people take inside a product, such as an app or a signed-in web service, who takes them, and what those people and actions have in common, so a team can see which features are used and who comes back.
Is Convertlyft a product analytics tool?
No. Convertlyft is website analytics for one website: where visitors leave, why, and what to change. For a mobile app, or for following signed-in people through a product over weeks, a product analytics tool such as PostHog, Mixpanel or Amplitude fits better.
Does Convertlyft work for a mobile app?
No. Convertlyft measures websites through one script tag or its WordPress plugin. There is no mobile app SDK.
Can I use a product analytics tool and Convertlyft together?
Yes. Convertlyft's line runs beside other analytics code, so a product analytics tool can keep reading your product while Convertlyft reads your website.
What does Convertlyft cost?
Free up to 5,000 visits a month, with every feature. The plans above that are on the pricing page.
Sources
- PostHog, home page, posthog.com, as of 31 October 2026.
- PostHog, pricing, posthog.com/pricing, as of 31 October 2026.
- PostHog, replays (session replay), posthog.com/session-replay, as of 31 October 2026.
- Mixpanel, home page, mixpanel.com/home/, as of 31 October 2026.
- Mixpanel docs, “What is Mixpanel?”, docs.mixpanel.com/docs/what-is-mixpanel, as of 31 October 2026.
- Mixpanel, pricing, mixpanel.com/pricing/, as of 31 October 2026.
- Amplitude, home page, amplitude.com, as of 31 October 2026.
- Amplitude, pricing, amplitude.com/pricing, as of 31 October 2026.
- Amplitude docs, SDK catalog, amplitude.com/docs/sdks, as of 31 October 2026.
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