DataFast vs BestSubscribers: Which One Tracks the Revenue That Matters?

DataFast is a great product. This isn't a takedown piece.

Marc Lou built something genuinely useful -- a clean, simple way to connect website traffic to Stripe revenue. Around 1,000 paying customers, $17.5K MRR, Product Hunt Maker of the Year. Respect where it's due.

But if your business runs through an email list, DataFast has a blind spot. It tracks the click. It tracks the sale. It skips the middle -- the email subscriber who sat on your list for 3 weeks before buying. That middle step is where the real attribution lives for creators.

What DataFast Does (and Does Well)

Revenue-per-visitor metrics. Connects website traffic directly to Stripe, LemonSqueezy, and Shopify revenue. Shows which traffic sources produce paying customers -- not just visits.

X/Twitter tweet attribution. Automatically scans for links in your tweets and attributes traffic plus revenue to specific tweets. Replaces the generic t.co referrer. This is genuinely unique and useful.

Design and UX. The anti-GA4. Clean dashboards, real-time 3D globe, beautiful interface. Users consistently say "I will never use GA again."

Google Search Console integration. Connects organic search data to revenue.

Setup. Add a 4KB script plus connect Stripe. Two-minute setup.

Pricing. Starts at $9/month for 10,000 events. 14-day free trial, no credit card required.

Active development. Marc builds in public, ships frequently, and responds to feedback.

If you sell directly on your website -- SaaS, e-commerce, digital downloads -- DataFast does exactly what it promises.

The Gap: Where Does the Email List Fit?

Here's a scenario most creators will recognize.

You publish a blog post about productivity systems. 200 people read it. 14 sign up for your newsletter. Three weeks later, you launch a $297 course via email. 4 of those 14 subscribers buy. That's $1,188 in revenue from one blog post.

What DataFast sees: "14 visitors from organic search. $0 revenue."

Three weeks later: "$1,188 from email traffic."

Two disconnected data points. No way to connect them.

For creators, the revenue chain looks like this:

Content -> Email Signup -> (days/weeks/months) -> Purchase

DataFast tracks:

Traffic Source -> Website Visit -> Purchase

The gap is the email list. DataFast has no email platform integrations. No Kit. No MailerLite. No AWeber. No Mailchimp. It can't tell you which subscriber came from which piece of content. It can't connect a purchase from your email list back to the content that attracted that subscriber.

For creators whose revenue flows through email -- and for most creators, it does -- this is the critical missing piece.

This isn't a knock on DataFast. It's a web analytics tool doing web analytics well. But creators need content analytics.

What BestSubscribers Tracks That DataFast Doesn't

BestSubscribers tracks the full content to subscriber to purchase chain:

• Which specific piece of content (blog post, tweet, video) brought each email subscriber
• Which subscribers (by name) became paying customers
• Revenue attributed back to individual pieces of content
• Direct integration with Kit and MailerLite for subscriber-level tracking
• Direct integration with Stripe and Teachable for purchase tracking

Using the example above: "Your blog post 'Productivity Systems That Actually Work' brought 14 subscribers. 4 bought your course. Total revenue: $1,188."

That's the answer DataFast can't give you.

What DataFast Tracks That BestSubscribers Doesn't

DataFast covers ground BestSubscribers doesn't. Being honest:

• Website traffic trends, pageviews, visitor behavior
• Google Search Console keyword-to-revenue data
• Automatic X/Twitter tweet attribution (no manual link creation needed)
• Shopify, Paddle, and Polar payment integrations
• Multi-site dashboard
• Real-time traffic visualizations
• Mobile app

If you need web analytics, DataFast is better at that. BestSubscribers isn't trying to replace your analytics dashboard.

"But DataFast Is $9 and BestSubscribers Is $19"

Yes. DataFast is cheaper.

And if all you need is web analytics plus Stripe revenue by channel, DataFast at $9/month is a great deal.

But they're not solving the same problem. That's like comparing a $9 hammer to a $19 screwdriver and saying the hammer is a better deal. Depends what you're building.

DataFast's $9 tells you which traffic sources drive revenue. BestSubscribers' $19 tells you which content drives the subscribers who become your best customers.

If email is your revenue engine, the $19 answers the question that actually moves the needle.

And if you use both -- $28/month total -- you get complete attribution visibility with zero overlap.

Side-by-Side Comparison

| Feature | DataFast | BestSubscribers | | | | | | Core question answered | "Which traffic sources drive revenue?" | "Which content drives subscribers who buy?" | | Approach | Website-centric | Email-centric | | Starting price | $9/mo | $19/mo | | Free trial | 14 days | 14 days | | Email platform integrations | None | Kit, MailerLite | | Payment integrations | Stripe, LemonSqueezy, Shopify, Paddle, Polar | Stripe, Teachable | | Tweet attribution | Automatic (scans your tweets) | Via tracking links | | Google Search Console | Yes | No | | Subscriber-level tracking | No | Yes | | Content to subscriber to purchase chain | No | Yes | | Best for | SaaS founders, web-based businesses | Newsletter creators, course sellers |

Who Should Choose DataFast

DataFast is the right tool if:

• You're a SaaS founder who sells directly on the website, no email funnel
• You're an indie hacker who needs clean web analytics plus Stripe revenue per channel
• You want Google Search Console plus revenue data in one place
• You sell primarily through website checkout, not email launches

For web-based businesses without an email funnel, DataFast is the right tool at a great price.

Who Should Choose BestSubscribers

BestSubscribers is the right tool if:

• Your business model is: publish content, grow email list, sell to that list
• You use Kit or MailerLite as your core business platform
• You want to know which blog post, tweet, or video brought each paying subscriber
• You sell courses, memberships, or digital products through email
• You've been staring at your analytics thinking "it says my revenue comes from email, but which content got those people on my list?"

The Bottom Line

DataFast and BestSubscribers solve different halves of the same puzzle.

DataFast answers: "Twitter drives more revenue than organic search."

BestSubscribers answers: "That specific thread about productivity brought 12 subscribers who spent $2,400."

If your revenue flows through your website, use DataFast. If your revenue flows through your email list, use BestSubscribers. If you want complete visibility, use both for $28/month total.

Different questions. Different tools. Pick the one that matches how your business actually works.

FAQ

Does DataFast track email subscribers?

No. DataFast connects website traffic to payment processor revenue (Stripe, LemonSqueezy, Shopify). It has no email platform integrations. If your revenue flows through an email list, DataFast can't trace a sale back to the content that attracted the subscriber.

Is DataFast worth it for creators?

DataFast is excellent for tracking which traffic sources drive direct website revenue. If you sell through website checkout (SaaS, e-commerce), it's a great tool at $9/month. But if most of your sales come through email (courses, digital products, memberships), DataFast misses the subscriber attribution step that matters most.

Can I use DataFast and BestSubscribers together?

Yes. They solve different problems with zero overlap. DataFast handles web analytics and traffic-to-revenue tracking. BestSubscribers handles content-to-subscriber-to-purchase attribution. Together ($28/month) you get complete visibility into both your website and email revenue.

Does BestSubscribers replace DataFast?

No. They solve different problems. DataFast is web analytics that connects traffic sources to payment revenue. BestSubscribers is content attribution that connects your content to email subscribers to purchases. Many creators could use both without overlap for $28/month total.

How is DataFast different from Google Analytics?

DataFast connects website traffic directly to payment revenue, which GA4 doesn't do natively. It's also simpler to set up and use. However, like GA4, DataFast is website-centric -- it doesn't track what happens after someone joins your email list.