Free tools

The referral math, done for you

Seven free tools for planning, tracking and pressure-testing a referral program — readiness, rewards, ROI, CAC, virality. Everything runs in your browser, nothing asks for an email.

ROI Calculator

Estimates the revenue, payback and CAC impact of launching a referral program from your own audience size, order value and reward inputs.

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Link Generator

Builds trackable referral links with UTM parameters, advocate IDs and scannable QR codes, entirely client-side.

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Program Scorecard

Scores referral program readiness out of 100 across twelve weighted questions — demand evidence, economics, mechanics, trust, operations — with a prioritised fix list.

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Referral Tracker

An in-browser referral tracking spreadsheet replacement: log referrals and get conversion rate and outstanding reward liability computed live, with CSV export and local-only storage.

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Viral Coefficient Calculator

Computes viral coefficient K from invites per user and invite conversion, charts eight cycles of compounding, and works backwards from a growth target to the K it requires.

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Referral vs Paid CAC

Puts paid-channel and referral-channel acquisition costs side by side with identical math, through to payback months per channel.

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Reward Calculator

Works out the maximum sustainable two-sided referral reward from gross margin, target payback and customer lifetime, split between referrer and friend.

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Frequently asked

Are these tools really free?

Yes — free, ungated and unlimited. Nothing asks for an email address, and the calculators run entirely in your browser, so what you type never reaches our servers.

Do I need a ReferralFlo account to use them?

No. Every tool works without an account. They exist because the math and the tracking discipline matter whether or not you ever buy software — though if a tool convinces you a program is worth running properly, we'd naturally like the demo.

Where does the data I enter go?

Nowhere. The calculators compute in the page; the referral tracker stores its rows in your own browser's local storage. Nothing you enter is uploaded, logged or shared.

The tools plan the program. We run it.

ReferralFlo handles the links, attribution, reward rules and fraud screening these tools help you scope — without engineering time.

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