Sumly vs OpenPanel

OpenPanel is open-source web and product analytics, with revenue you send it as events. Sumly reads subscriptions and payments from your billing and the app stores, and sets its own visitor analytics beside them.

Open the live demo Start free
MRR · all 5 projects
€3,940
from
+8.0% in 30 days
Last 30 days €4,758 net
In apps 22%On sites 78%
Just came in
  • TimeLoop App Store · in the app · via RevenueCat 🇪🇸 +€4.99
  • Humanize Stripe · on the site 🇩🇪 +€11.04
  • AstroChart Google Play · in the app 🇨🇦 +€9.99
  • TimeLoop Stripe · on the site 🇳🇱 +€4.99

The live demo: our own apps, with example numbers.

SumlyOpenPanel
Web analytics without third-party cookies SumlyYes; in the EU and UK the visitor cookie waits for consent OpenPanelYes, without cookies
Revenue by traffic source SumlyYes, read from your payment provider OpenPanelYes, from revenue events your code sends, such as from a payment webhook
MRR, churn, refunds and fees from billing SumlyYes OpenPanelNot shown on its pages; revenue comes as events
App Store and Google Play (directly or through RevenueCat) SumlyYes OpenPanelNot listed
Mobile SDKs SumlyNot yet; a server API takes app events OpenPanelReact Native, Swift and Kotlin
Funnels, retention and user profiles SumlyFunnels, retention and people OpenPanelYes, with cohorts
Session replay SumlyNo OpenPanelYes
MCP server for AI assistants SumlyYes OpenPanelYes
Brand mentions on the traffic chart SumlyReddit, Hacker News, Bluesky, YouTube and the web, searched daily and marked on the traffic chart OpenPanelNot found
App users from your server, met with the RevenueCat buyer SumlyFrom your server through the events API, met with the RevenueCat buyer by app user id OpenPanelA track API and server SDKs; RevenueCat not listed
Costs and ROI per source, campaign or creator link, also sent by API SumlyBy hand, from a file or by API, with ROI by source, campaign and creator link OpenPanelNot found; the costs it tracks are AI model calls
Who is likely to pay, from your own payers SumlyAn estimate from the project's own payers, once it has five tied to visits OpenPanelNot found
A setup prompt for coding assistants SumlyEach integration page and tracking line copies as a prompt OpenPanelNot found
Script from your own domain, past ad blockers SumlyOne DNS record (Starter and Growth), or two paths on your site OpenPanelYes, with a proxy on your site
Open source and self-hosting SumlyNo OpenPanelYes (AGPL), self-hosting free
Price SumlyFree for one project, from $9 a month, 14-day trial OpenPanelFrom $2.50 a month for 5,000 events, 30-day trial

OpenPanel as described on its own pages, 3 November 2026: openpanel.dev, openpanel.dev/pricing, openpanel.dev/docs/revenue-tracking, openpanel.dev/docs/sdks, openpanel.dev/docs/self-hosting/self-hosting, openpanel.dev/docs/mcp, openpanel.dev/docs/adblockers, github.com/Openpanel-dev/openpanel . Something out of date? Write to us and we fix it.

Where OpenPanel is the better choice

OpenPanel suits a team that wants Mixpanel-style product analytics it can host itself, and is happy to send revenue as events from its own code.

  • Open source under the AGPL, with a free self-hosted edition and no event limits there.
  • Deeper product analytics: cohorts, session replay and SDKs for React Native, Swift, Kotlin and many server languages.
  • Tracking without cookies, and AI observability for the model calls your product makes.
  • Unlimited sites and team members on every plan; you pay only for events, from $2.50 a month.

Where Sumly fits

Sumly suits a founder who wants revenue read from the billing system and the app stores, with renewals, refunds and churn counted, and the visits that brought each buyer beside it.

  • You want MRR, churn, refunds and fees read from Stripe, Paddle, RevenueCat or the stores, not sent from your code.
  • Some of your revenue comes from the App Store or Google Play.
  • You want ad and creator costs set against what the people they brought have paid.

Trying Sumly next to OpenPanel

The two scripts can run on the same pages, so a few weeks of both is the fair way to judge.

Sumly has no import of past visits from OpenPanel or any other analytics tool, so its visitor history starts the day the script is added. Revenue history does not wait: it is read from your billing, up to three years back.

  1. 1Create a project in Sumly and add its one script tag next to OpenPanel's.
  2. 2In the EU, the EEA, the UK and Switzerland, call sumly.consent(true) once the visitor agrees. Until then Sumly counts without a cookie.
  3. 3Connect your payment provider with a key that can only read, where the provider offers one.
  4. 4Where you pass OpenPanel's device id into checkout metadata, pass sumly_visitor_id too, so each payment is traced to the visit that started it.
  5. 5From an app's server, send screens and events to /api/v1/events with the same user id RevenueCat knows.

Visitor numbers in two tools rarely match exactly. Each decides in its own way what counts as a bot or a new visitor. Look at whether the trends agree.

Sumly and OpenPanel: questions

Does OpenPanel show revenue?

Yes, as revenue events. Its docs show calling op.revenue from your payment webhook, with the visitor's device id or profile id, so revenue shows by source and user. It does not read your billing, so a renewal or refund counts only when your code sends it. Sumly reads them from the payment provider.

Can I host Sumly myself?

No. Sumly is a hosted service and is not open source. If self-hosting matters to you, OpenPanel is open source under the AGPL and its self-hosted edition is free.

Does Sumly have mobile SDKs like OpenPanel?

Not yet. A React Native and Expo SDK is being rebuilt. Today an app's server sends screens and events through Sumly's server API, and app revenue comes from RevenueCat, the App Store or Google Play.

Does Sumly import my OpenPanel history?

No. Visitor history in Sumly starts when its script is added. Your revenue history is read from your billing provider, so that part is full from the first day.

What does each cost?

Sumly is free for one project, $9 a month on Starter and from $19 on Growth, with a 14-day trial. OpenPanel Cloud starts at $2.50 a month for 5,000 events, with a 30-day trial, according to its site on 3 November 2026, and its self-hosted edition is free.

Other comparisons

Sumly vs DataFast Sumly vs ChartMogul Sumly vs Baremetrics Sumly vs Plausible

Try it with your own projects

Sign in with Google or a code by e-mail and connect your first project. Free for one project, and 14 days of a paid plan with no card.

Start free

Or look around first: open the live demo.