The verdict: can you vibe code June?
Build a personal-use event tracker and metrics dashboard for your own apps, but the CRM sync and high-scale analytics pipeline involve heavy data engineering.
June's core value is taking raw event streams and instantly rendering clean, company-level B2B reports without manual BI setup. For a personal-use clone, you can build a streamlined Next.js app with a PostgreSQL database and Drizzle ORM that accepts tracking calls via an API route, groups events by user and company, and computes basic retention and active-usage metrics. However, building out reliable bi-directional CRM syncing with HubSpot and Salesforce, plus a secure text-to-SQL LLM pipeline that doesn't hallucinate invalid queries against your schema, will consume significant debugging time. Because the original product is shut down and was priced for companies above $1M ARR, building a lightweight personal dashboard for your own side projects is a fun and practical weekend-to-weeks build, but don't expect it to rival a dedicated enterprise analytics suite.
Estimated effort: 2-3 weeks part-time
What you can't replicate
- The original proprietary event processing pipeline and ClickHouse cluster
- Native enterprise security compliance certifications (SOC 2 Type II)
Founded
2020
Raised
$2.5M
Team
6-10
Cheapest paid tier
—
What June does
Automatically translates event streams into pre-built product reports, company-level metrics, and AI-powered insights for B2B SaaS companies.
Core features
- Event ingestion API for tracking user actions
- Identity resolution (stitching anonymous sessions to identified users and companies)
- Automatic metric templates (retention, active usage, feature adoption)
- Company-level analytics aggregation
- Natural language text-to-SQL query generation via LLM
- CRM integrations (HubSpot, Salesforce, Attio)
The business
Pricing
- All-in-oneCustom
Funding
$2.5M from Y Combinator, Point Nine Capital, Speedinvest, Des Traynor, Ryan Singer
Pay vs build, cumulative
Break-even at month 1 — after that, every month is money kept.
The hard parts of vibe coding June
- High-throughput event ingestion and analytical storage at scale
- Complex identity graph mapping users to accounts/companies
- Secure text-to-SQL pipeline mapping natural language prompts to database schemas safely
- Bi-directional synchronization and rate-limit handling with enterprise CRMs
How to vibecode June
Prerequisites
Node.jsfree
Runtime for building the Next.js web application and ingestion endpoints.
GitHubfree
Code repository hosting and deployment integration.
Supabase accountfree
Managed PostgreSQL database for storing user events, company profiles, and metrics.
AI coding tools
Recommended stack
| Frontend | Next.js with Tailwind CSS and Recharts |
|---|---|
| Backend | Next.js API Routes / Server Actions |
| Database | Supabase (PostgreSQL with pgvector for AI queries) |
| Auth | better-auth |
| Payments | none |
| Other | Vercel AI SDK, Anthropic API |
Hosting & infrastructure
| Vercel | Hosting the Next.js frontend, API ingestion endpoints, and serverless background tasks. | $0-20/mo |
Build guide
01Project Scaffolding and Database Schema
Initialize the Next.js application, configure Tailwind CSS, set up better-auth, and design the PostgreSQL database schema for users, companies, and events.
Create a new Next.js 16 project with TypeScript and Tailwind CSS v4. Set up Drizzle ORM to connect with Supabase PostgreSQL. Create database schemas for: 1) 'users' (id, email, name, company_id, created_at), 2) 'companies' (id, name, domain, created_at, traits), and 3) 'events' (id, anonymous_id, user_id, event_name, properties (JSONB), timestamp). Configure better-auth for single-tenant authentication so you can log into your own analytics dashboard securely. Ensure all migrations are clean and set up a basic layout shell with sidebar navigation.02Event Ingestion API and Client SDK
Build high-throughput ingestion endpoints (`/api/track`, `/api/identify`, `/api/group`) and a lightweight JavaScript snippet/client SDK to capture user telemetry.
Implement server-side and client-side tracking endpoints in Next.js. Create POST /api/track to ingest event payloads (event_name, user_id, anonymous_id, properties, timestamp), validate them with Zod, and batch insert them into the 'events' table. Create POST /api/identify to update user attributes and POST /api/group to map users to companies. Provide a lightweight JavaScript tracking client SDK snippet (track, identify, group methods) that developers can paste into their apps to send events to your ingestion API.03Automatic Metric Generation Engine
Build backend aggregation queries and API routes to compute core B2B SaaS metrics: retention curves, active usage (DAU/MAU), and feature adoption funnels.
Build a metrics calculation engine in TypeScript that queries the 'events' and 'users' tables to generate pre-built B2B SaaS reports. Implement SQL aggregation logic for: 1) Active usage (DAU, WAU, MAU), 2) User retention cohort analysis tables (percentage retained week-over-week), 3) Feature adoption counts grouped by company. Expose these calculations via GET API routes so the frontend can render them instantly without heavy client-side compute.04Company-Level Analytics Dashboard UI
Develop the React dashboard views using Recharts to visualize company accounts, health scores, usage trends, and individual user event timelines.
Create a comprehensive analytics dashboard UI using Recharts and Tailwind CSS. Include: 1) An Overview page with active usage charts and summary metric cards, 2) A Companies view listing all tracked accounts with aggregated metrics (total events, active users, last seen), 3) A Company Detail page showing individual user event timelines and health scores. Use server components where appropriate and client components for interactive date-range filtering.05LLM Text-to-SQL Natural Language Insights
Integrate the Vercel AI SDK and Anthropic API to allow users to query product usage data using natural language, translating prompts into safe read-only SQL queries.
Implement 'June AI' using the Vercel AI SDK and Anthropic API (Claude 3.5 Sonnet). Create an API route that accepts a natural language prompt about product usage (e.g. 'Show me companies with zero events in the last 7 days'), provides the database schema in the system prompt, generates a safe read-only SQL query, executes it securely against Supabase with strict parameter limits, and returns both the raw data and a recommended chart visualization type for the frontend.
Cost vs paying for June
What will you build it with?
Starting total with Claude Code$0 one-time
Starting costs (one-time)
- Custom Domain (optional)$12/yr
Total~$12 one-time
Ongoing costs (monthly)
- Vercel Pro / Supabase Database$0-25/mo
- Anthropic API credits for AI queries~$5/mo
Total~$10-30/mo
Paying for June
Custom / Enterprise (historically $500+/mo for growing B2B SaaS)
Your time to build
35-50 hours
AI tool credits
$20/mo (Claude Pro / Cursor)
Break-even
Immediate (June is shut down; alternative commercial B2B analytics tools cost hundreds monthly)
Vibe code June: FAQ
- Can you vibe code June yourself?
- Solid side project — 68/100 vibecodeable. Build a personal-use event tracker and metrics dashboard for your own apps, but the CRM sync and high-scale analytics pipeline involve heavy data engineering.
- How long does it take to vibe code June?
- 2-3 weeks part-time — roughly 35-50 hours of hands-on time with an AI coding agent.
- How do you build your own June?
- Scoped to personal use: Next.js with Tailwind CSS and Recharts on the front, Next.js API Routes / Server Actions behind it, Supabase (PostgreSQL with pgvector for AI queries) for data. Follow the 5-step build guide on this page — each step has a paste-ready prompt for an AI coding agent.
- How do you code your own June without being an expert?
- Use an AI coding tool (Claude Code or Cursor) and work in small steps: scaffold, data model, core screens, then deploy. Realistic effort: 2-3 weeks part-time. The prompts on this page are written so the AI does the heavy lifting.
- How much does it cost to vibe code June instead of paying?
- About ~$12 one-time to start and ~$10-30/mo to run, versus Custom / Enterprise (historically $500+/mo for growing B2B SaaS) for June. Break-even: Immediate (June is shut down; alternative commercial B2B analytics tools cost hundreds monthly).
- What stack should you use to vibe code June?
- Next.js with Tailwind CSS and Recharts; Next.js API Routes / Server Actions; Supabase (PostgreSQL with pgvector for AI queries); plus Vercel AI SDK, Anthropic API.