Analytics is the first line to go when a startup cuts scope. Nobody sees it in the demo, it has no screen of its own, and everyone agrees it can wait until there are enough users to count.
That cut removes the one thing an MVP is for. A first release exists to produce evidence about who uses the product, what they do and where they stop. A large share of startup MVPs ship as web apps, whether a SaaS dashboard, a customer portal or a marketplace, and a web application development company that builds them for a living treats event tracking as part of the build, wired in alongside authentication and billing. Every AppVerticals build goes out with its events already firing on the first deploy. Wiring them takes a few days. Launch without them and you throw away the first months of learning, with no way to get that data back later.
Pick the Metric Before the Screens
Tracking everything fails as surely as tracking nothing. Start from the one assumption the MVP exists to test, and write down the number that proves or disproves it. For a reporting tool, that's the share of trials that return for a second report inside two weeks. For a marketplace, it's repeat bookings per buyer in the first month. Any event that doesn't help you read that number can wait.
Four Events for Release One
The tracking plan for release one is short:
Source. Sign-up with UTM parameters and the referrer, so you know which channels bring users who stay.
Activation. The moment a user first gets value: first report created, first booking confirmed.
Repeat use. The core action, counted per user per week.
Drop-off. One event per onboarding step, so the stall point is visible.
Use one naming pattern from the start, such as object_action: report_created, invite_sent. A list of events named three different ways is unreadable by month three.
Track the Operation Behind the Screens
Funnels show what users do. For service businesses, the numbers that explain churn live in operations. On a home-services platform we rebuilt, residents booked cleaning and chores through the app, while the admin dashboard counted bookings, late jobs, redo requests and top-performing providers. Numbers like those explain why customers leave well before a retention chart catches up.
If your product has a service behind it, instrument the service as carefully as the screens. Dashboards like that are routine scope in web application development services for marketplaces and SaaS products, so make sure the operations side is in your plan and your quote.
Keep the Build Moving
Tracking slows a build only when it shows up at the end. A few habits keep it small:
Pick one analytics tool early. GA4 handles traffic and basic funnels free of charge; Mixpanel or Amplitude give you cohorts and retention with less work. Changing tools halfway through breaks the trend line you're trying to read.
Send revenue events from the backend. Payments, plan changes and refunds recorded server-side survive ad blockers and closed tabs.
Add consent handling in the first sprint if any users sit in the EU or UK. Bolting it on later leaves a gap in the record.
Walk the core flow on staging and watch each event arrive once, with the properties you expect. An event that misfires for six weeks gives you six weeks of fiction.
Read Small Numbers With Care
Small samples lie. At sixty users, a single power user can bend every average, so read individual journeys alongside the totals, and when activation slips, phone five people who stopped. With a few dozen active users in hand, Sean Ellis's question makes a useful second signal: ask how people would feel if they could no longer use the product, and count the share who say "very disappointed." First Round Review's write-up of Superhuman's process puts the bar at 40%; Superhuman began at 22% and climbed. A low first score is the normal starting point. The point is to have the number at all, so you can segment it and watch it move.
Write the Decision Down
Decide in advance which result, by which date, means you keep building, pivot or pause. Keep that note next to the tracking plan, with founder and build-team sign-off, so nobody reinterprets it after launch. Teams that skip this step read every chart as good news.
Schedule the tracking plan in sprint one, name the number that decides what comes next, and let it argue with your roadmap.
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