# Atrby vs Mrkr

> Mrkr does privacy-friendly analytics well, with replay and AI traffic too. atrby adds revenue from six payment processors by webhook, and a trial without a card.

Canonical: https://atrby.site/compare/mrkr
Last updated: 2026-10-26

## Side by side

Pricing and features, line by line.

### Pricing

| Capability | atrby | Mrkr |
| --- | --- | --- |
| What you are billed on | Pageviews only. Events, goals, revenue and replays never count | Pageviews only |
| Entry price | $19 Starter, $39 Growth at 150k pageviews | $5 at 100k, $14 at 300k, $29 at 1M pageviews |
| Free trial | 14 days, no card | No. $1 for the first 14 days, card required |
| Over your plan limit | Never locked. Moved up only after two months in a row over | Keeps recording, $0.05 per extra 1,000 pageviews |

### Revenue

| Capability | atrby | Mrkr |
| --- | --- | --- |
| Payment processors | Stripe, Lemon Squeezy, Polar, Paddle, Dodo, Shopify, plus a payment API | Stripe by webhook, or mrkr.revenue() from the page |
| Funnels | Every plan | Every plan |

### Product

| Capability | atrby | Mrkr |
| --- | --- | --- |
| Cookieless by default | Yes, with an optional Product mode per site | Yes, with an optional cookie mode per site |
| Session replay | 2,000 a month on Starter, 20,000 on Growth | Included on paid plans |
| AI traffic | AI referrals to revenue, plus which AI crawlers read your pages | AI referrals and 32 known crawlers |
| Data retention | 3 years on Starter, 5+ on Growth | 1, 2 or 3 years by plan |
| API and AI tools | MCP, API and CLI | MCP server, no public REST API |
| Seats | 1 on Starter, 30 on Growth | Unlimited on every plan |

Mrkr details come from mrkr.app/llms.txt and mrkr.app/pricing.md, checked on 24 Oct 2026. "Not listed" means we couldn't find it there, not that it's impossible. Prices in USD per month. If something is out of date, email hello@atrby.site and we'll fix it within a day.

## What you get with atrby

Only what it does today.

- **Revenue by source.** Stripe, Lemon Squeezy, Polar, Paddle, Dodo and Shopify by signed webhook. Each payment is matched to the visit that brought it.
- **Cookieless by default.** No cookie banner needed in the default mode. Visitor ids come from a salt that changes daily and is deleted.
- **AI traffic.** Visits and revenue from ChatGPT, Perplexity, Claude and Gemini, plus which AI crawlers read your pages.
- **Funnels and goals.** Ordered funnels per visit and goals on pages or events, with the revenue of visitors who converted.
- **Web vitals from real visits.** LCP, INP, CLS, FCP and TTFB measured by the same script. No extra tag.
- **Priced on pageviews only.** From $19 a month. Events, goals, revenue and crawler hits are never metered.
- **Never locked out.** Over your tier we keep collecting and the dashboard stays open. A 14-day trial needs no card.
- **Alerts and a weekly digest.** Revenue drops, traffic spikes and a broken install by email. A Monday summary of what changed.

We only list what atrby does. Check Mrkr's own site for their current features and pricing.

## Run both side by side

Keep whichever tells you more.

### 01. Add atrby next to Mrkr

One script tag in the head. It doesn’t touch Mrkr, and both can run together.

```html
<script defer src="https://atrby.site/atrby.js" data-site="…"></script>
```

### 02. Connect your payments

One click for each processor. atrby pulls 90 days of payments on connect, so revenue by source fills in on day one.

### 03. Compare for 14 days

Look at both side by side. Remove Mrkr only when the numbers line up, or keep both.

Mrkr is a trademark of its owner. We are not affiliated.

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