Analytics that are mostly good

Track events. See funnels. Measure retention. Ship.

You shipped. Now see what landed. Drop in an SDK and get funnels, retention, and event tracking without extra setup.

Start free. No credit card. Upgrade only when your usage grows.

1. Sign up

Create your beta account.

2. Get a key

MGM creates your first API key.

3. Send an event

Use one of five SDKs.

4. See the chart

Your product starts making sense.

Product preview with illustrative demo data

Conversion Funnel

Visitors

12,847

Signed Up

4,129

32.1%

Activated

2,847

68.9%

Converted

1,284

45.1%

12,847 visitors 👀
Visit
32% converted 📝
Signup
69% activated 🚀
Active
45% paid 💰
Paid

10% overall conversion rate ↑ 2.3% vs last week

Everything you need, nothing you don't

Built for simplicity. Designed for developers.

Drop in an SDK

Instrument your app with a lightweight SDK. Track events without complex setup or vendor-specific ceremony.

Live Event Stream

Watch events flow in as they happen. Dashboards update as data is aggregated.

See where users drop off

Build custom funnels to track any conversion flow. Finally answer "why aren't they converting?"

Understand who comes back

Cohort analysis that shows you who's sticking around, who ghosted, and why.

Explore raw events

Dig into your data without writing queries. Filter, group, and slice events however you want.

Privacy First

Your data stays yours. No selling, no sharing. We're not in the ad business.

AI-powered

Just ask

Type a question, get a chart. No query language, no complex filters, no training required.

  • "How many signups last week?"
  • "Show me daily active users by platform"
  • "What's the conversion rate for checkout?"
Ask
|

Total signups

2,847

+18% from last month

Daily signups 2,847
Dec 17 Dec 22

AI Analysis

Signups are up 18% this month. The spike on Dec 18-20 correlates with your Product Hunt launch. iOS users convert 2.3x better than web.

Product Hunt spike +18% growth iOS converts best

Why "mostly" good?

Because we believe in honest marketing.

What we do well

  • Count events mostlyIt's in the name and terms of service reliably
  • Show you where users drop off (funnels!)
  • Tell you who's coming back (retention!)
  • Keep your data private
  • Not drain your bank account

What we won't pretend to do

  • Predict your users' future behavior
  • Require a 45-minute onboarding call
  • Replace your product sense
  • Make you coffee
  • Solve all your problems

We're good at what we do. We just don't oversell it.

Start tracking in minutes

No complex setup. No configuration headaches. Just grab your API key and start sending events.

  • Works with any language or platform
  • Batch events for efficiency
  • Custom properties for rich context

Built for indie developers

Made by someone who ships developer tools

Mostly Good Metrics is built by Josh Holtz, lead maintainer of fastlane and a longtime indie developer. The beta is intentionally hands-on, so early users can help shape analytics that stay useful without becoming another project to manage.

Why Josh is building MGM
Beta pricing - 85 spots remaining!

Lock in beta pricing forever

First 100 subscribers keep these prices for life. No increases, ever... for them.

Are you sure? 🤔

Free

For side projects

$0 /month

  • 50K-100K events/month
  • 30 day data retention
  • Email support
Get started
Yessss, do it! 😏
Beta Pricing

Starter

For growing apps

$9 /month $12

Lifetime beta pricing - save $3/mo forever

  • 500K events/month
  • 90 day data retention
  • Metrics by property
  • Ask AI (100/day)
  • Integrations
  • Email support
Lock in beta pricing
OMG YES CLICK IT 🔥
Best Value

Pro

For serious apps

$29 /month $49

Lifetime beta pricing - save $20/mo forever

  • 5M events/month
  • 365 day data retention
  • Metrics by property
  • Ask AI (500/day)
  • Integrations
  • Email support
Lock in beta pricing

Ready for mostly good analytics?

Join the beta and help shape analytics made for indie developers.

No credit card required. No 14-day trial anxiety. Just sign up.