SaaS analytics that covers marketing, product, and revenue

Seline is the simple SaaS analytics tool that replaces GA4, Mixpanel, and Amplitude with one fast, privacy-first workspace. Track the marketing site, the product, and Stripe revenue from a single dashboard.
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onG2  —  “It's refreshing to use an analytics tool that just works without any hassle.”
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One SaaS analytics tool for the marketing site and the product

Most SaaS teams stitch GA into the marketing site, Mixpanel into the app, Stripe into another tab, and a founder into a spreadsheet between them all. Seline replaces that pile with a single workspace and a single tracking script that follows a user from first visit to paid plan.
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“Previously, I had all of my sites hooked up to Google Analytics, like most people. But I never looked at the reports. Now, I find myself dropping in and looking at the stats several times a day. It's very easy to digest and understand.”
Chris Williams
Chris Williams
Founder, Cloudscope
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“We switched from Google Analytics, tried PostHog and eventually gave up... I like Seline because of the simplicity, and I use it almost every day.”
Jack Qi
Jack Qi
Co-Founder, Edcafe

Why SaaS teams outgrow Google Analytics

GA4 is built for media sites. SaaS teams need something else. You care about the same user over months, not the same pageview over one session. Here is what usually breaks first.
1
Signup-to-paid in GA4 takes heavy setup.
You need to know which trial users became customers, what they did first, and where the rest dropped off. GA4 can get there with User-ID, custom events, and conversion goals, but most SaaS teams never finish the wiring, or the path lives split across reports. Seline ties the marketing session, signup, activation, and Stripe charge to one profile with a script and a few events.
2
Mixpanel and Amplitude pricing scales with signups.
Most SaaS product analytics tools price per monthly tracked user. Add a free tier and the bill jumps every month. Seline pricing stays predictable as you grow, on one plan that includes every feature out of the box.
3
Funnels live in a different tool than pageviews.
You should not have to swap tabs to answer "how is the new pricing page converting into paid?". Seline puts pages, sources, funnels, profiles, and revenue side by side in one product.
4
Churn is invisible until it hits MRR.
Most tools surface churn after the fact. With Seline you build an at-risk segment from usage drop-offs and share it with CS before users churn.
5
Cookie banners hide part of your funnel.
Low consent rates mean part of your trial pipeline never shows up in GA. Seline is cookie-less and GDPR-ready, so you can drop the banner and recover the visible traffic without legal risk.

How Seline solves SaaS analytics

Seline gives you the marketing-site basics (pages, sources, campaigns) and the product analytics primitives (profiles, funnels, journeys) in one workspace. Wire it up with our SDK, connect Stripe, and the rest is a couple of well-named events.
*
no setup required
means you only need to add our whisper-thin (~2kb) html snippet to your website for the feature to work.

Profiles and churn signals

3-minute setup
Identify users, set traits, see every session and event they ever fired. Build at-risk segments before they churn, not after.
Martha Falls
SE
Sweden
, 
FIELDS 6
Plan
Free
Company
Falls Inc
Role
Marketing
Bruce Wayne
US
United States
, 
FIELDS 6
Plan
Pro
Company
Wayne Corp
Role
Engineering

Activation funnels

3-minute setup
Build a real signup to activation to paid funnel and jump straight into the journey of any dropped user to debug it.
Seline's guide to funnels
0.8% total conversion rate
2123
532
-74.9%
17
-96.8%
step 1
/blog/*
step 2
user: signed up
step 3
project: upgraded
FILTERS
google.com

Stripe and revenue attribution

3-minute setup
Connect Stripe and Seline maps every UTM and referrer to MRR. See which campaigns bring paying customers, not just signups.
Revenue tracking
Sources
5 referrers
Revenue

AI chat over your data

no setup required
Ask "what is our weekly retention by plan?" in plain English. Seline writes the query, returns the answer, and links straight back to the dashboard.
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Seline
“Seline looks so good! The power of small teams...” — x.com
Guillermo Rauch
Guillermo Rauch
CEO, Vercel

Four SaaS use cases Seline covers by default

These are the questions SaaS teams ask us on their first call. Each one is a job Seline ships with, so there are no custom dashboards, no SQL, and no analytics engineer required.

Start with the workflows you need most, then add the rest when you are ready.

Signup to activation to paid

Build the funnel that defines your SaaS. See drop-off at every step, compare last week to this week, and jump into the journey of any dropped user in one click to understand exactly why.

MRR by channel

Stop reporting on signups. Connect Stripe and watch which UTMs and referrers actually bring paying customers, and which channels bring users who churn quickly.

User profiles for support and sales

Search any user by email and see every session, page, and event they ever fired. Helpful for support tickets and for sales before a renewal call.

Churn risk detection

Build a segment of paying users who have not fired your key events in 14 days. Route the list to CS or trigger a win-back email before they cancel.

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seline moving boxes

Set up signup, activation, and revenue analytics today

Add the ~2kb script, call seline.setUser on login, send the four events that matter to your SaaS, and connect Stripe. That is it. Funnels, profiles, and revenue show up in the dashboard.
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Join 1,000+ companies who see their stats plain and true.

What is inside a SaaS Seline workspace

User profiles

Every signup turns into a profile with traits, events, and a full session history. Find a user by email and see exactly what they did before they churned or upgraded.

Activation funnels

Build signup to activation to paid funnels and watch drop-off update in real time. Compare cohorts, test changes, and see whether conversion improved.

Stripe and custom revenue

Connect Stripe in two clicks or send revenue events from your backend. Every campaign, page, and channel ties back to MRR, not signups alone.

AI chat over your data

Ask "what is our checkout conversion this week?" in plain English and get a real answer. No SQL, no custom dashboards, no analytics engineer in the loop.

One tool for marketing and product

Stop paying for GA, Mixpanel, and Amplitude in parallel. Seline covers the marketing site and the in-app product in one workspace, and stays fast as you grow.

~2kb script

Our ~2kb script is roughly 23x smaller than the Google Analytics tag. It stays out of the way of Core Web Vitals, with no consent banner needed.

Cookie-less, GDPR-first

No third-party cookies, no cross-site tracking. EU-hosted in Germany with a DPA available on request.

Real-time everything

Dashboard, funnels, and AI chat all run on ClickHouse. Numbers update in seconds, not the next morning.

Custom events

Send any event with any properties via our SDK or HTTP API. Same tool, same dashboard, same user profile, whether the event came from the site or the app.
Every online business should have analytics in place. It's essential.
But it's not always easy to find the right tool. For us it was either too simple, too bloated, or too slow. That's why we've cherry-picked the most important analytics features and carefully crafted them into one minimalistic tool, Seline.
Think of Google Analytics, but intuitive and fast.
A tool you'll actually enjoy using daily.
If you're interested in trying our product but not sure where to start, feel free to reach out to us via , twitter or email.
Looking forward to have you on board!
Gratefully,
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P.S. Seline is completely free to start.
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SaaS analytics Q&A

The best SaaS analytics tool is one that covers both your marketing site and your in-app product, without forcing you to combine GA4, Mixpanel, and a CRM. Seline does both. Pageviews on the marketing site, user profiles and funnels in the app, under a single workspace and a single bill.

Mixpanel and Amplitude are powerful but heavy. They demand hours of taxonomy work, ship with opaque pricing, and have a real learning curve. Seline keeps the same primitives (events, profiles, funnels, retention) but in a simpler interface and on one predictable plan.

Yes. Send a few custom events (signup, key activation moment, paid) and Seline builds you a real-time funnel with drop-off, cohort comparisons, and a one-click jump into the journey of any user who dropped at a given step.

Yes. Connect Stripe in two clicks or send revenue events from your backend. Every UTM, referrer, campaign, and page is then linked to actual paid customers, so you can see which channels drive paying users versus signups.

Yes. Call seline.setUser({ userId, email, name, ... }) and Seline turns anonymous sessions into named profiles. Search any user, open their timeline, and see exactly how they used the product, page by page and event by event.

Yes. Seline ships an MCP server so you can query your analytics from Cursor, Claude Code, or any MCP-aware client. Inside the dashboard there is also an AI chat that answers questions like "what is our weekly retention by plan?" without any setup.

Yes. Seline is EU-based, hosted in Germany, and cookie-less by default. We provide a DPA on request and never sell or share your data. For most SaaS deployments you can drop your cookie banner entirely without losing analytics coverage.

Install Seline's ~2kb script on the marketing site, call seline.track and seline.setUser from the product, then connect Stripe. Run Seline in parallel for one week, confirm the numbers, and cut the legacy stack. Contact us if you want help with migration.
Comparing options? See PostHog vs Seline, Amplitude vs Seline, and our revenue analytics page.
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Better SaaS decisions, one workspace. Try product, marketing, and revenue together.

Add Seline to your SaaS in minutes. See where users sign up, where they activate, and which channels actually bring paying customers, all under a single bill.
Add to your SaaSView live demo