2. 1. DataFast: The Reference Product
| Creator | Marc Lou (Product Hunt Maker of the Year 2023, 127K Twitter followers) |
|---|---|
| Revenue | ~$16.7K/month MRR (November 2025), ~$200K ARR |
| Users | 14,355 active users |
| Pricing | Starter $9/mo (10K events, 1 site) • Growth $19/mo (10K events, 30 sites) |
| Growth timeline | 120 days to $1K MRR → $5K MRR → $16.7K MRR |
| Funding | Bootstrapped (Marc Lou’s portfolio: 16 startups, $2.2M+ total revenue) |
What DataFast Actually Is
DataFast sits at the intersection of two categories that are normally separate: web analytics (where visitors come from) and revenue analytics (how much money you make). It connects the two by linking Stripe/LemonSqueezy payment data to website visitor sessions.
Marc Lou himself clarified: “DataFast was never meant to be a Google Analytics alternative. DataFast is a marketing tool to grow your startup. It tracks everything from visitor to customer and gives you insights on how to get more business. Revenue attribution is impossible without it.”
Core Features
- Revenue attribution
- See which marketing channels (organic, Twitter, Product Hunt, paid ads, referrals) drive actual paying customers — not just traffic or signups.
- Revenue per visitor
- The headline metric: how much revenue each visitor generates, broken down by source. This is the metric founders actually need but no standard analytics tool shows.
- Customer journey tracking
- Full path from first click to conversion. Goals, funnels, and journey visualization.
- Simplified web analytics
- Lightweight (4KB script), privacy-friendly, focused on growth metrics rather than vanity metrics. Real-time visitor monitoring with purchase probability indicators.
- Payment integrations
- Stripe, LemonSqueezy, Polar, Shopify, plus a custom Payment API.
Weaknesses
- Tiny — $200K ARR is a single-person lifestyle business, not a platform.
- Marc Lou dependency — growth is driven by his personal Twitter audience (127K followers). The product doesn’t have independent brand recognition.
- Limited SaaS metrics — no MRR/ARR/churn/LTV dashboards like Baremetrics or ChartMogul. Revenue attribution only.
- No open source — closed source, hosted only.
- Cheap pricing may limit growth — at $9–$19/mo, revenue per customer is very low. Scaling to $1M ARR requires 4,000–9,000 paying customers.
3. 2. The Market: Two Overlapping Categories
DataFast lives at the intersection of two large markets that don’t talk to each other:
- Category A: SaaS Revenue Analytics
-
Tools that connect to Stripe/Paddle/Chargebee and show MRR, ARR, churn, LTV, cohorts, forecasting.
Players: Baremetrics, ChartMogul, ProfitWell (Paddle), QuantLedger.
Market: ~$1.7–$12.9B email/marketing analytics market (broader).
What they lack: no connection to web traffic. They know how much you make but not where customers come from. - Category B: Web / Product Analytics
-
Tools that track visitors, pageviews, sessions, funnels, events.
Players: Google Analytics, Plausible, Fathom, PostHog, Mixpanel, Amplitude.
What they lack: no connection to revenue data. They know where visitors come from but not which visitors pay.
DataFast’s insight: the most important question for a SaaS founder isn’t “how many visitors do I have?” or “what’s my MRR?” — it’s “which marketing channel produces the highest-LTV customers?” Answering that requires connecting Category A and Category B. Nobody does this well.
4. 3. Revenue Analytics Players (Category A)
Baremetrics
- Revenue
- $1.5M ARR, 766 customers (2025). Peaked at ~$2M ARR before acquisition.
- History
- Founded 2013 by Josh Pigford. Raised $1.1M (General Catalyst, Bessemer). Pioneered the “Open Startups” movement (public revenue metrics). Acquired by Xenon Partners (PE) for $4M in November 2020. Pigford walked away with $3.7M; $300K went to the 10-person team.
- Pricing
- Starts at $75/mo (Launch), scales to $1,152/mo (Scale). MRR-based pricing. Add-ons: Payment Recovery ($129/mo), Cancellation Insights ($129/mo).
- Features
- MRR, ARR, LTV, churn, cohorts, forecasting, cancellation insights, payment recovery, trial insights. One-click Stripe integration. Open Startups dashboard for public metrics.
- Strengths
- Pioneer of the category. Best-known brand. Simple one-click setup. Churn prevention tools.
- Weaknesses
- Expensive ($75/mo minimum). MRR-based pricing penalizes growth. Acquired by PE — innovation slowed. No revenue attribution (doesn’t know where customers come from). $4M exit for $1.1M raised — not a great outcome.
ChartMogul
- Scale
- 2,500+ SaaS customers. 160M+ transactions tracked.
- Pricing
- Free up to $120K ARR. Then $127/mo ($120K–$220K ARR), scaling to $1,336/mo (up to $6M ARR). ARR-based pricing.
- Features
- MRR, ARR, churn, LTV, ARPU, cohort analysis, customer segmentation, revenue forecasting. 25+ billing platform integrations (Stripe, Braintree, Recurly, PayPal, etc.).
- Strengths
- Most generous free tier (full analytics up to $120K ARR). Best multi-platform billing support. Strong segmentation and cohort analysis. Data warehousing capabilities.
- Weaknesses
- ARR-based pricing gets expensive fast. No revenue attribution. No web analytics. Enterprise-leaning.
ProfitWell Metrics (Paddle)
- Scale
- 30,000+ businesses (Canva, Autodesk, Notion). Acquired by Paddle.
- Pricing
- Free. Completely free. No usage limits. No revenue caps. MRR, ARR, churn, LTV, ARPU, cohort reports, benchmarking against 34,000 companies. All free.
- Strengths
- Free forever. Benchmarking against 34K companies is unique. No-setup if you use Paddle. Customer health scores and churn prediction.
- Weaknesses
- Owned by Paddle — strategic tool to drive Paddle adoption, not an independent product. Dashboards update every 3–6 hours (not real-time). No revenue attribution. Limited if you don’t use Paddle.
QuantLedger
- Pricing
- Starter $79/mo (up to $50K MRR), Growth $149/mo (up to $500K MRR), Scale $299/mo (up to $2M MRR). Per-seat add-on: $49/seat.
- Features
-
Standard SaaS metrics (MRR, ARR, LTV, churn, cohorts) plus:
- ML-powered revenue attribution without tracking pixels — analyzes payment patterns and customer behavior (95% accuracy).
- ML churn prediction — 30 days in advance using 40+ behavioral signals.
- Automated payment recovery — catches 30–40% of cancellations, recovers 83% of failed payments.
- Key difference
- Revenue attribution without tracking. Uses payment data analysis instead of cookies or pixels. 100% GDPR compliant. This is the closest competitor to DataFast’s core value prop, but approaches it from the billing side rather than the web analytics side.
5. 4. Web Analytics Players (Category B)
These tools track visitors but don’t connect to revenue:
| Tool | Pricing | Model | Revenue Connection | Open Source |
|---|---|---|---|---|
| Plausible | $9/mo (10K pageviews). Self-host free. | Bootstrapped. $1M+ ARR. | E-commerce revenue goals only | Yes (AGPL) |
| Fathom | $15/mo (100K pageviews) | Bootstrapped. Profitable. | No | No |
| PostHog | Free (1M events/mo). Usage-based. | VC-funded ($75M+). Open source. | No (product analytics, not revenue) | Yes (MIT) |
| Google Analytics | Free (GA4). GA360: $50K+/year. | Ad-funded. | E-commerce tracking (complex setup) | No |
| Umami | Free self-host. Cloud from $9/mo. | Open source. | No | Yes (MIT) |
Key observation: Plausible has “revenue goals” for e-commerce but no Stripe integration for SaaS subscriptions. PostHog tracks product events but not billing data. Google Analytics can track e-commerce with complex setup but doesn’t connect to subscription revenue. No open-source web analytics tool connects to Stripe.
6. 5. Comparison Matrix
| Tool | Revenue/ARR | Entry Price | Web Analytics | SaaS Metrics | Revenue Attribution | Open Source | Self-Host |
|---|---|---|---|---|---|---|---|
| DataFast | ~$200K | $9/mo | Yes | Basic | Yes (tracking) | No | No |
| Baremetrics | $1.5M | $75/mo | No | Full | No | No | No |
| ChartMogul | Undisclosed | Free–$127/mo | No | Full | No | No | No |
| ProfitWell | Free (Paddle) | Free | No | Full | No | No | No |
| QuantLedger | Undisclosed | $79/mo | No | Full | Yes (ML, no tracking) | No | No |
| Plausible | $1M+ | $9/mo | Yes | No | No | Yes | Yes |
| PostHog | VC-funded | Free | Yes | No | No | Yes | Yes |
| The gap ↓ | — | — | Yes | Full | Yes | Yes | Yes |
The bottom row is the product that doesn’t exist: an open-source, self-hostable tool that combines web analytics + full SaaS metrics + revenue attribution. Nobody fills all columns.
7. 6. The Gap Nobody Fills
- Revenue analytics tools don’t know where customers come from. Baremetrics, ChartMogul, and ProfitWell connect to Stripe but have zero web analytics. They can tell you MRR is $50K but not that 40% of your paying customers came from a single blog post. Without attribution, you’re flying blind on marketing spend.
- Web analytics tools don’t know who pays. Plausible, Fathom, PostHog, and Google Analytics track visitors but have no connection to billing data. They can tell you 10,000 people visited from Twitter but not that those visitors generated $0 in revenue while 500 visitors from a niche forum generated $5K.
- DataFast bridges the gap but lacks SaaS metrics depth. DataFast has revenue attribution (which channel drives paying customers) but doesn’t show MRR trends, churn analysis, cohort retention, LTV calculations, or forecasting. It’s half the answer.
- QuantLedger has ML attribution but no web analytics. QuantLedger does attribution from payment patterns (no tracking required) but can’t tell you about traffic sources, landing pages, or user journeys before purchase. It’s the other half.
- No open-source option exists at all. Plausible and PostHog are open-source web analytics. There is no open-source SaaS revenue analytics tool (Baremetrics/ChartMogul equivalent). And there is certainly no open-source tool that combines both.
- ProfitWell is free but it’s a Paddle acquisition funnel. The best free option is owned by a payment processor and exists to drive Paddle adoption. It’s not independent or open. If you don’t use Paddle, you’re a second-class citizen.
8. 7. The Open-Source DHH Playbook
How to attack this market following the DHH/37signals philosophy: bootstrapped, opinionated, open source, profitable from day one.
Reference: How Plausible Did It
Plausible is the model to follow. They built an open-source, privacy-friendly Google Analytics alternative and reached $1M+ ARR with a small bootstrapped team. Their playbook:
- Open source the core product (AGPL license)
- Free Community Edition for self-hosting
- Paid cloud hosting with premium features (funnels, revenue goals, SSO)
- No VC money, funded entirely by users
- Strong opinions: privacy-first, no cookies, lightweight script, simple dashboard
- Content marketing against Google Analytics (“GA alternative” search terms)
Apply It to SaaS Revenue Analytics
- 1. Open source the core
- Open-source the Stripe integration, MRR calculations, web analytics tracking, and basic dashboard. Use AGPL (like Plausible) to prevent cloud competitors from hosting it without contributing back. Self-hosting should be a single Docker container with Postgres.
- 2. Charge for cloud + premium features
- Cloud-hosted version with premium features: revenue attribution, cohort analysis, churn prediction, payment recovery, multi-billing-platform support, team seats, SSO, API access. Pricing: $29/mo flat (not MRR-based, not per-seat, not per-event). Like Basecamp pricing.
- 3. Opinionated product
- Not “analytics for everyone.” This is “analytics for SaaS founders who use Stripe.” Stripe-first. Privacy-first. One dashboard, not fifty. Show the metrics that matter (MRR, churn, LTV, revenue per visitor, top acquisition channels) and nothing else. Kill the complexity that makes GA, Baremetrics, and ChartMogul overwhelming.
- 4. Bootstrapped, small team
- 2–5 people. Profitable within 12 months. Plausible did $1M ARR with a small team. Baremetrics peaked at $2M ARR with 10 people. The category supports profitable small teams, not VC-scale outcomes.
- 5. Privacy-first positioning
- No cookies. No tracking pixels. GDPR/CCPA compliant by design. Lightweight script (<5KB). Revenue attribution via server-side Stripe webhooks, not client-side tracking. This is both a moral position (DHH philosophy) and a competitive advantage (no consent banners needed).
- 6. Own your data
- Self-host option means you own your analytics data forever. No vendor lock-in. Export everything. This is the “ONCE” philosophy applied to analytics: your data, your server, your rules.
9. 8. The Product
One Dashboard, Two Data Sources
The product connects two inputs and produces one unified dashboard:
| Input | How | What It Provides |
|---|---|---|
| Web traffic | Lightweight JS snippet (<5KB, no cookies) | Visitors, sessions, referrers, UTMs, landing pages, countries, devices |
| Billing data | Stripe webhook (server-side, no client tracking) | MRR, ARR, churn, LTV, ARPU, new/expansion/contraction/churned revenue, cohorts |
The magic: the system matches visitor sessions to Stripe customers. When a visitor from “twitter.com/somepost” later converts on Stripe, that revenue is attributed to the source. No manual tagging, no complex UTM setup, no pixel tracking.
Features: Community Edition (Free, Self-Hosted)
- Web analytics: visitors, pageviews, sessions, referrers, UTMs, countries, devices
- Stripe integration: MRR, ARR, new subscribers, churned subscribers
- Basic revenue attribution: which referrer sources produce paying customers
- Simple dashboard: one page, no configuration
- Single Docker container + Postgres
- API for custom integrations
Features: Cloud Edition (Paid)
- Everything in Community Edition
- Full SaaS metrics: churn analysis, LTV, ARPU, cohort retention, MRR movements, forecasting
- Revenue attribution by channel, campaign, landing page, and content piece
- Revenue per visitor broken down by acquisition source
- Customer journey visualization (first touch → signup → trial → paid → expansion)
- Multi-billing support: Stripe + Paddle + LemonSqueezy + Chargebee
- Team access, SSO, custom domains
- Email reports and Slack notifications
- Managed hosting, backups, uptime SLA
Pricing
| Plan | Price | Notes |
|---|---|---|
| Community | Free (self-host) | Core analytics + basic Stripe metrics. Forever free. AGPL licensed. |
| Cloud | $29/month flat | All features. Unlimited events. Unlimited team members. No MRR-based scaling. |
Why $29/mo flat: Baremetrics starts at $75/mo and scales with your MRR. ChartMogul starts free but hits $127/mo at $220K ARR. DataFast is $9–$19/mo but lacks depth. $29/mo flat is cheaper than Baremetrics at any scale, competitive with DataFast on features, and sustainable for a bootstrapped business. At 3,500 customers = $1M ARR.
10. 9. Go-to-Market
- Launch: Hacker News + GitHub
- “Show HN: Open-source SaaS analytics with revenue attribution (Baremetrics + Plausible in one tool).” This is exactly the kind of project HN loves: open source, solves a real problem, replaces expensive SaaS. Plausible’s HN launch was a defining moment for their growth.
- Content: SEO against every comparison query
- “Baremetrics alternative,” “ChartMogul vs Baremetrics,” “open source Stripe analytics,” “SaaS metrics dashboard,” “revenue attribution for SaaS.” These are high-intent, low-competition queries. Write the best comparison content for every one.
- Positioning: “Plausible for revenue”
- Plausible proved that “privacy-friendly, open-source alternative to [Big Tool]” is a powerful positioning. Apply the same frame: “The open-source, privacy-friendly alternative to Baremetrics — with revenue attribution built in.”
- Target: indie SaaS founders (Stripe users)
-
The initial audience is founders who:
- Use Stripe
- Want to know which marketing channels drive revenue
- Find Baremetrics too expensive or too complex
- Care about privacy and data ownership
- Would self-host if the option existed
- Open Startups integration
- Build a public dashboard feature (like Baremetrics Open Startups) that founders can embed on their websites. Each embedded dashboard is a backlink and a marketing channel. Indie hackers love showing their metrics publicly — give them the best tool to do it.
- Migration tools
- One-click data import from Baremetrics and ChartMogul. Historical Stripe data backfill on first connection. Remove every friction point from switching.
11. 10. Verdict
DataFast proved the insight: founders want to connect web traffic to revenue. But DataFast is a $200K/year indie product without SaaS metrics depth, open source, or self-hosting. The revenue analytics incumbents (Baremetrics, ChartMogul, ProfitWell) have the metrics but no traffic attribution. The web analytics tools (Plausible, PostHog) have the traffic but no billing integration. And no open-source tool exists in the revenue analytics category at all.
The product that should exist:
- Open source (AGPL, like Plausible)
- Self-hostable (single Docker container)
- Combines web analytics + SaaS metrics + revenue attribution in one dashboard
- Stripe-first, privacy-first, no cookies
- $29/mo flat for cloud (cheaper than Baremetrics at any scale)
- Bootstrapped, small team, profitable from year one
Why it works as an open-source business:
- Plausible proved the model — open-source analytics alternative, $1M+ ARR, bootstrapped. Exact same playbook, different category.
- No OSS competitor — there is literally no open-source Baremetrics/ChartMogul alternative. The entire SaaS revenue analytics category is closed-source and expensive.
- Self-hosting creates trust — SaaS founders are sharing their most sensitive data (revenue, churn, customer payments). Self-hosting means that data never leaves their infrastructure.
- Flat pricing kills MRR-based pricing — Baremetrics and ChartMogul charge more as you grow. Flat $29/mo becomes increasingly valuable as your MRR scales. At $1M ARR, Baremetrics costs $500+/mo. This costs $29/mo.
- Revenue attribution is the wedge — “which marketing channel produces paying customers?” is the question every founder asks. Nobody answers it well. It’s the hook that gets people to switch from Baremetrics, and the feature that justifies cloud over self-hosted.
Risks:
- ProfitWell is free — hard to compete with free (but it’s Paddle-owned and closed-source, so the positioning is different).
- ChartMogul is free up to $120K ARR — targets the same early-stage founders.
- Stripe is improving its native analytics dashboard — could eventually make basic metrics tools redundant.
- Baremetrics only did $1.5M ARR and sold for $4M — this is not a huge market. Ceiling may be $2–5M ARR as an indie business.
Best entry point: open-source Stripe analytics with built-in web analytics and revenue attribution. Launch on Hacker News as “Plausible meets Baremetrics.” $29/mo flat cloud pricing. Target indie SaaS founders who use Stripe and find Baremetrics too expensive. Bootstrappable to $1M ARR following the exact Plausible playbook.