cashflowing
Cashflowing · Apr–Sep 2026

We studied the most cashflowing apps.

Now we’re sharing what we learned: who people pay, what’s growing, and what you could build next.

Free · 688 AI products · 22,010 websites

Get all 22,010 sites as a spreadsheet.

Free CSV: every company, its checkouts, niche and traffic. We email you the link.

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1B
visits to checkout pages, traced to their source
15 providers, Apr–Sep 2026
22,010
websites sending traffic to checkout
540 use more than one checkout
49%
of Stripe Checkout’s traffic comes from 497 AI products
+14%
growth in AI products’ monthly checkout visits, April → September
+1% without the one breakout
Inside 688 AI products

You don’t need to be famous to get paid.

197 AI products send more than 10K people a month to a checkout page. Only 20 passed a million visits in six months. The typical one sends about 3.1K people a month to pay: a small but real business.

44%
of AI checkout traffic goes to the top 10
287
of the 688 use a .ai domain
AI products by monthly checkout visits · Sep 2026
  1. 500K+ a month7
  2. 100K+ a month33
  3. 10K+ a month197
  4. All AI products we found688

Checkout visits are people sent to pay, not purchases. Treat them as the size of the funnel.

Where to build

14 AI niches, read like a map.

How many products already get paid in each niche, how fast its checkout traffic grew from April to September, and how much the biggest one takes.

Growth compares monthly checkout visits in April and September across all 15 checkouts. Niche labels are ours.

New money

29 AI products came out of nowhere.

Almost no checkout traffic in April, 20K+ people a month by September. Most are small teams, and most aren’t household names.

Share on X
365 of 688 shrank
Over the same six months, 273 grew by a fifth or more. Getting paid once is not the same as staying paid.
80% use Stripe, vs 24% of everyone else
AI products mostly sell through Stripe Checkout or Payment Links. The rest of the web is spread across PayPal, Razorpay, Mollie and others.

Want the breakouts before everyone else?

Free CSV: every company, its checkouts, niche and traffic. We email you the link.

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Stripe Checkout alone

On Stripe’s checkout, AI is nearly half the traffic.

Most AI products take payments through Stripe’s hosted checkout. Of everyone it served from April to September, this share came from AI products.

The breakout

17.7K to 2.1M a month. In five months.

higgsfield.ai went from a rounding error to Stripe Checkout’s biggest single source of traffic between April and September. We can’t see why. What we can see is the shape: a creative-AI product turning attention into payments within weeks, not years.

Without it, AI checkout traffic across all 15 checkouts changed by +1% over the same months: one winner took nearly all of the new money. That is the game.

higgsfield.ai · visits to checkout pages / month
April
17.7K
September
2.1M
118× in five months
The other fast risers
  • supercool.com12.1K → 589K 48.6×
  • brain.fm0 → 149K 29.8×
  • commandcode.ai0 → 147K 29.4×
  • ooc.ai0 → 130K 26.1×
Building now?

What the data says to do.

We followed 688 AI products for six months and compared the ones that grew with the ones that shrank. No guru advice, just what moved.

Share of products that grew vs shrank · Apr → Sep
Grew 20%+Shrank 20%+
  1. 3D generation8 products
    63%13%
  2. Model APIs & inference58 products
    50%40%
  3. Writing, detection & translation50 products
    42%42%
  4. Marketing, ads & SEO49 products
    45%53%
  5. Chatbots & companions46 products
    41%50%
  6. Productivity & meetings30 products
    40%50%
  7. Lifestyle & wellbeing9 products
    44%56%
  8. Study & education25 products
    40%52%
  9. Video & image generation226 products
    40%54%
  10. Agents & automation62 products
    40%60%
  11. Coding agents & app builders46 products
    33%61%
  12. Search & data14 products
    36%64%
  13. Voice, music & audio52 products
    25%65%
  14. Professional & business13 products
    23%69%

Grew or shrank = checkout visits in Aug–Sep vs Apr–May changed by more than a fifth. The rest held roughly steady.

0163%

Go where more grow than shrink.

In 3D generation, Model APIs & inference and Writing, detection & translation, more products grew than shrank. In Voice, music & audio and Professional & business, more than half shrank: the leaders are taking the market.

0252% vs 21%

Small is not a disadvantage.

AI products under 5K checkout visits a month grew 52% of the time; bigger ones only 21%. Part of that is the small base, but there is clearly room to start.

038 of 29 breakouts

Video still lets newcomers in, with an angle.

8 of the 29 products that came out of nowhere were video or image tools, despite 226 competitors. But 54% of video products shrank: a specific audience or use case beats another general generator.

0478% ≈ 80%

Take payments on day one. The checkout won’t decide it.

Products that grew and products that shrank use Stripe at the same rate (78% vs 80%). Pick one, ship it, and spend the time on the product.

Six months of modelled traffic is a signal, not a guarantee. Use it to choose where to look, then talk to the people paying.

Picking where to get paid

Stripe is the default. The challengers are growing.

Stripe Checkout sends 43M visits a month, about 61× all five merchant-of-record challengers combined. But the challengers grew +33% in five months, and the newest are moving fastest.

Monthly visits (Sep) and growth since April
  • Stripe Checkout+12%
    43M
  • Stripe Payment Links+6%
    3M
  • Gumroad−6%
    2M
  • Dodo Payments+81%
    181K
  • Creem+39%
    77K
  • Polar+37%
    192K
  • Paddle+19%
    121K
  • Lemon Squeezy+1%
    139K

PayPal moves 124M a month but mostly from marketplaces like eBay and Etsy — a different market, covered in the case study.

Every company, one page each

Is your competitor on the list?

Search all 22,010 companies by checkout traffic. Every row opens its own page: its rank, which checkouts its buyers use, and the companies in its niche.

Free dataset

Get the AI money map.

  • ✓The top 500 sites sending people to each of 15 checkouts
  • ✓All 22,010 sites ranked across every checkout, with who uses what
  • ✓Visits, share, category and Similarweb rank. CSV, ready for a spreadsheet

We’ll email you a download link. No spam, and you can unsubscribe anytime.

How it was made

Stand outside the bank. Watch where the depositors came from.

1

Pick the doors

Every buyer walks through a checkout page. We chose 15 of them, from Stripe and PayPal to the newest indie providers.

2

Read who sent them

Traffic data records the page each visitor came from. Flip it around and you get a ranked list of sellers, without ever seeing their books.

3

Clean and compare

We merged subdomains, removed search and social, and had language models read each homepage to label the AI products by niche.

Get the data, free →