We first published this comparison in March 2026 and re-checked every vendor's live pricing page in August. Four of the six tools moved, and several figures in the original edition needed correcting outright. Here is the delta, so you can see exactly what has been recalculated below.
The Growth rate we quoted was a deep-discount rate, not list price
MixpanelThe March edition of this guide priced Mixpanel Growth at roughly $0.000083 per event. That is a volume-discounted rate that only applies well into the tens of millions of events. Mixpanel's published list price is $0.28 per 1,000 events — $0.00028 per event — after the first 1M events each month. Every Mixpanel cost in this article has been recomputed at list price, which roughly triples the figures at 5M and 10M events.
Session replay is now bundled into both the free and Growth plans
MixpanelThe free plan still caps at 1M monthly events but now includes 10,000 monthly session replays and up to 5 saved reports. Growth includes 20,000 replays and unlimited reports. If you were paying for a separate replay tool alongside Mixpanel, that line item may now be redundant — though replay still tells you nothing about which channel produced the revenue.
A Startup Program gives qualifying companies a free first year
MixpanelCompanies founded fewer than 5 years ago that have raised $8M or less, and have not redeemed a previous offer, get their first year free on the Startup Plan. If you qualify, the cost argument against Mixpanel effectively disappears for 12 months — the setup-time and no-Stripe-integration arguments do not.
The free tier is now event-based, not MTU-based — and it is 2M events
AmplitudeWe previously described Amplitude's free plan as covering up to 50,000 monthly active users. It is now stated as 2M events per month, forever, with no credit card required. That is double Mixpanel's free allowance and makes Amplitude the most generous free product analytics tier of the group. The entry paid plan (Plus) starts at $0 and meters usage above the free block, so there is no published flat monthly price to compare.
Correction: Contentsquare acquired Heap, not the other way around
HeapThe March edition said “Heap acquired Contentsquare in 2023.” That was backwards. Contentsquare acquired Heap in 2023, and Heap now sits alongside Hotjar inside the Contentsquare portfolio. Heap also meters sessions rather than events: 10,000 monthly sessions free with 6 months of history, and custom session pricing on Growth, Pro, and Premier.
The per-event rate is banded, and the first band is cheaper than we said
PostHogWe listed a flat $0.000225/event. PostHog's published rates taper: 1M events free, then $0.00005/event from 1–2M, $0.0000343 from 2–15M, and $0.0000295 from 15–50M. At 10M events that is roughly $325/mo — about an eighth of Mixpanel Growth at list price, and the single best reason an engineering-led team would pick PostHog over Mixpanel on cost alone.
Both unchanged
Plausible & AttrifastPlausible's Starter plan is still $9/mo on monthly billing for up to 10,000 pageviews. Attrifast is still a flat $9.99/mo with no event, session, or pageview meter, and still includes a 7-day free trial with $0 due today.
The one thing that did not move: none of these tools added a native payment-processor connection. Every product analytics platform in this comparison still requires you to build and maintain the Stripe webhook pipeline[5] yourself if you want revenue attached to a marketing channel. That is the gap this article is about, and it is the same gap it was in March.