For founders and marketing teams done with paid ads. Embed in 5 minutes. Your users invite friends. You track every conversion. No credit card. No expiry.
Your users see a beautiful referral program right inside your product — their unique link, one-click sharing to X, LinkedIn, and email, and live earnings tracking. All from a two-line embed.
Connect Stripe (or your billing tool) and existing coupons become referral rewards instantly. Discount applied at checkout, automatically — zero dev work.
K-coefficient is the one metric that tells you if your referral program is actually working — or just generating noise.
K = Invitations sent per user × Conversion rate
K > 1 = every user brings in more than one new user. Growth compounds.
Most tools show clicks. Revfloow shows you the K-coefficient live — so you know the exact moment growth becomes self-sustaining.
One embed. No backend. No engineers. Your full referral infrastructure — free forever.
The honest thinking behind it — no catch, no small print.
Most "free plans" are demos with a timer. A feature locks. A limit hits. You upgrade or leave.
This widget is genuinely free — no expiry, no paywalled tracking. Run your entire referral loop on it forever.
Every "Powered by Revfloow" your users see is word-of-mouth for us. You get free infrastructure. We get visibility. A fair trade.
When you're ready for affiliates, influencers, or a full partner program — that's when we charge. Not before.
No engineer needed. Fill in the form and we'll have you live the same day.
Everything free today — upgrade only when you're ready.
| Feature | Free Widget ∞ | Self-Serve Platform €65/mo | Done For You from €2k/mo |
|---|---|---|---|
| In-app referral widget | ✓ | ✓ | ✓ |
| Unlimited referrals tracked | ✓ | ✓ | ✓ |
| Email invite sending | ✓ | ✓ | ✓ |
| Unique referral links per user | ✓ | ✓ | ✓ |
| K-coefficient (viral coefficient) tracking | ✓ | ✓ | ✓ |
| Stripe coupon integration | ✓ | ✓ | ✓ |
| Activation campaigns | ✓ | ✓ | ✓ |
| Basic analytics dashboard | ✓ | ✓ | ✓ |
| Affiliate & influencer tracking | — | ✓ | ✓ |
| Custom commission tiers | — | ✓ | ✓ |
| White-label partner portal | — | ✓ | ✓ |
| Partner recruitment & management | — | — | ✓ |
| Dedicated partnership manager | — | — | ✓ |
| Credit card ever required | Never | After 30-day trial | Yes |
Same goal, different approach. Here's how they differ.
| CelloUser-led growth platform | RevfloowFree widget + growth partner | |
|---|---|---|
| Pricing to get started | Paid plan required Starts at ~$249–499/mo depending on plan |
Free forever No credit card. No trial timer. No catch. |
| Time to go live | Demo call → onboarding → setup — typically days to weeks | Paste two lines of JavaScript → live in under 5 minutes |
| Best suited for | Funded companies with a GTM team and budget for tooling | Founders and marketing teams who want organic, channel-led growth without the paid ads dependency |
| Viral coefficient (K) tracking | Not a core feature | Live K-coefficient gauge from day one — know exactly when you hit exponential growth |
| Stripe coupon integration | Not included | Sync existing coupons, auto-apply at checkout, run activation campaigns — included free |
| Works for recurring products | Primarily SaaS | Any recurring billing — SaaS, memberships, courses, agencies, communities |
| Beyond the widget | Self-serve software platform — you run the program yourself | Optional done-for-you: we build and manage your full partner program when you're ready |
| Partnership expertise | Software product | 12 years running partnership programs — strategy, recruitment, and management included in upgrades |
When referrals are working and you're ready to scale — we run the whole program. No hiring, no agency retainers. Just 12 years of partnership expertise, end-to-end.
Share a few details so we can personalise your integration and get you live the same day. No generic docs — just what you need.
No credit card. No commitment. Isabel will reach out within a few hours with your personalised setup.
Isabel will be in touch within a few hours with your personalised setup. You'll be live the same day.