Blog
Notes on measuring things.
Guides to measuring your site, and fair comparisons of the tools that do it.
Session replay: watch any visit beside its analytics
Spreelytics now records visits on your site, so you can watch one with its page views, clicks and events listed beside it. Masked by default, included in Growth.
ReadMarketing attribution software: 11 tools compared for 2026
Eleven marketing attribution tools compared on who each is for, its models and its free plan, and where each one beats us. Checked October 2026.
ReadHow to track revenue in Mixpanel, step by step
Three ways to get revenue into Mixpanel, from a purchase event to Stripe webhooks, and the step that ties each payment to the channel behind it.
ReadMixpanel vs Amplitude: free plans, prices and which to pick
Mixpanel and Amplitude compared on free plans, what 10M events cost, attribution, replay, flags and AI. Prices checked on 1 October 2026.
ReadThe best product analytics tools in 2026: 11 compared
Eleven product analytics tools compared on free plans, session replay, feature flags, self-hosting and who each one suits. Checked October 2026.
ReadConnect Claude or ChatGPT to Spreelytics by signing in
Our MCP server now lets AI apps connect by signing in, with no key to copy. Answers can also show as charts, number tiles and tables inside the chat.
ReadWeb analytics pricing: Plausible, Fathom, Umami and more
Eight privacy-friendly analytics tools priced side by side at 1M and 10M a month, with what each one counts, its free plan and what happens when you go over.
ReadAmplitude pricing in 2026: free plan, Plus and 10M events
Amplitude gives 2M events free, then prices its Plus plan by volume. Here are the figures from its own calculator, checked on 1 October 2026.
ReadPostHog pricing in 2026, explained with worked examples
How PostHog bills product and web analytics events, why identified events cost more, and what the bill comes to at 1M, 5M, 10M and 20M events.
ReadMixpanel pricing in 2026: what 1M and 10M events cost
Mixpanel's free plan, its Growth plan rate per event, what happens when you go over, and which features sit behind add-ons. Checked on 1 October 2026.
ReadIs Google Analytics free? GA4 and GA4 360 pricing explained
GA4 costs nothing to use. GA4 360 has no public price. Here is what each one includes, where the free plan runs out, and what free costs you in practice.
ReadThe best Google Analytics alternatives in 2026
Eight Google Analytics alternatives compared on what they are good at, what they leave out, their free plans and what they cost, checked on 1 October 2026.
ReadHow to ask Claude Code or Cursor about your analytics with MCP
Connect Claude Code or Cursor to Spreelytics in two minutes, ask about your traffic in plain English, and let it build the report for you.
ReadHow to track traffic from ChatGPT and other AI assistants
People now click through to your site from ChatGPT, Perplexity and Claude. Here is how to find those visits in GA4 and in Spreelytics.
ReadWhy GA4 and your other analytics never show the same numbers
Two analytics tools on one site will disagree. These are the usual causes, and how to check which one you are looking at.
ReadHow to see which marketing channel earned each Stripe payment
Stripe knows who paid. Your analytics knows where visitors came from. Here is how to join the two, step by step, with the code.
ReadUTM parameters: how to tag links so your channels add up
What each UTM parameter does, which values put a visit in the right channel, and the naming mistakes that split one campaign into five rows.
ReadWeb analytics vs product analytics: do you need two tools?
Web analytics tells you how people found you. Product analytics tells you what they did next. Here is where the line sits, and when one tool covers both.
ReadYour analytics cannot see AI crawlers
AI crawlers like GPTBot and ClaudeBot read your pages without running JavaScript, so a browser tracker never sees them. Here is what that hides.
ReadLast-touch or linear, and why we made you pick
Last-touch gives all the credit to the final visit, while linear splits it across every visit.
ReadGA4 sampling: why your biggest week gets estimated numbers
GA4 samples explorations above 10 million events, so your biggest week often gets estimated numbers. Here is where the thresholds sit, and what we do instead.
ReadSee your own numbers today.
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