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Build an Email List / Waitlist

Collect interested users before you write a line of code — the cheapest, most repeatable way to validate demand and launch to an audience instead of silence.

Cost
Free–$
Time to results
Weeks
Difficulty
Easy
Best for
B2B + B2C

Proof first

7 companies already did this.

+ 4 more examples mapped to individual steps below

Deep dives

Two case studies, start to finish.

Robinhood — the status ladder

Robinhood · 2014

Pre-launch · ~1M waitlist

What they built: pre-launch page + queue position UI

What they didA one-page site: "Commission-free trading. Stop paying up to $10 per trade." Signing up showed your position in line — and referring friends moved you up.

Why it workedThe queue turned waiting into a game: every referral moved you up the line, so signups recruited signups instead of the company buying them. TechCrunch counted 500K signups by the App Store launch; the founders put the total near 1M.

Copy thisShow position in line. Make referral the only way to skip ahead. One promise, one field, one button.

Harry's — milestone rewards

Harry's · 2013

Pre-launch · 100K emails / 7 days

What they built: two-page referral microsite + tier graphic

What they didA two-page microsite: page one collected your email, page two gave you a personal referral link with physical rewards at 5, 10, 25 and 50 referrals.

Why it workedTangible product rewards beat abstract "move up the list" for a physical brand — 77% of the 100K emails came from referrals.

Copy thisReward milestones with your product, not swag. Seed the loop with a personal email to ~100 friends first.

The guide

7 steps, each anchored to a real example.

Tick each step off as you go. Your progress is saved in this browser.

Step 1 · ~1 hour

Nail the one-line promise

Before any page exists, write one sentence: who it's for + the pain it kills + one concrete number if you have it. If a stranger can't repeat it back, rewrite it. This line IS your landing page.

Google Doc5 customer conversations

How Superhuman did this step

"The fastest email experience ever made."

Paraphrased — see source

One superlative, one noun, zero features. That single line carried a 180K-person waitlist for years.

Source [5] ↓

Step 2 · ~Half a day

Build a one-page landing

Promise at the top, one email field, one button. No nav, no feature grid, no "About us". Ship it in an afternoon — polish is procrastination at this stage.

Carrd — $19/yrFramerTypedream

How Robinhood did this step

Illustration

The entire pre-launch site. Headline, sub-line with a number, one field.

Source [1] ↓

Step 3 · ~1 hour

Wire up capture — and show the queue

Connect the form to an email tool with double opt-in. Then show each signup their position in line on the confirmation screen — a number makes the list feel alive and sets up step 4.

ConvertKit — free to 1KLoopsGetWaitlist

How Mailbox did this step

PEOPLE AHEAD OF YOU

#—

Invite friends to skip the line

Illustration

Mailbox's live reservation counter became the story itself — it filled 1M reservations in about six weeks, and screenshots of people's queue position spread everywhere.

Source [4] ↓

Step 4 · ~Half a day

Add a referral incentive

Give every signup a personal link and a reason to share it: skip the queue (Robinhood) or earn real rewards at milestones (Harry's). This is the difference between a list and a loop.

Viral LoopsKickoffLabsGetWaitlist referrals

How Harry's did this step

5

referrals

10

referrals

25

referrals

50

referrals

Illustration

The four milestone tiers. 77% of Harry's 100K pre-launch emails arrived through this loop.

Source [2] ↓

Step 5 · 1–2 weeks

Drive the first 1,000 visitors

Loops need fuel. Post where your users already gather: one niche community post that shows (not tells), a personal note to 100 relevant contacts, and a demo artifact people want to share.

Hacker News / subredditsNiche newslettersPersonal network

How Dropbox did this step

Show HN: Dropbox

Illustration

A 3-minute screencast seeded to Digg and HN — full of insider easter eggs for that exact audience — took the beta list from 5K to 75K overnight.

Source [3] ↓

Step 6 · 30 min / week, ongoing

Send weekly value emails

A silent list dies — unsubscribes at launch will shock you. One short email a week: a build update, a useful insight from your research, or an early screenshot. Value first, ask never.

Your ESP's broadcastTemplate below ↓

How Levels did this step

SUBJECT LINE

Illustration

Levels kept a 100K+ waitlist warm with genuinely useful metabolic-health content while it let people into the beta about a thousand at a time.

Source [7] ↓

Step 7 · Weekly review

Measure two numbers, then set a launch trigger

Track visitor→signup rate (aim above 20% for a targeted audience) and referral share of signups. Decide in advance what unlocks the build: "500 signups or 3 weeks, whichever comes first."

Plausible / FathomYour ESP dashboard

How Robinhood did this step

Illustration

Robinhood watched the referral share weekly — when the loop sustained itself, they knew the list would carry the launch.

Source [1] ↓

Before you start

Pros & cons.

Works in your favour

  • Nearly free — a page, a form, and consistency
  • Validates demand before you spend months building
  • You own the channel — no algorithm between you and your list
  • Compounds: referral loops turn each signup into more signups
  • Launch day starts with an audience, not zero

Go in with eyes open

  • Emails ≠ customers — waitlist→paid conversion of 2–10% is normal, plan for it
  • Lists decay fast: a list you don't email loses much of its value within months
  • Referral mechanics attract prize-hunters if rewards outshine the product
  • You still need step 5 — a landing page with no traffic validates nothing

Make it yours

Three ways to run it.

The Robinhood model

Status ladder · ~1M waitlist

Position-in-line + referral to skip ahead. Best when exclusivity is believable — fintech, hot consumer apps.

The Harry's model

Milestone rewards · 100K / week

Physical or in-product rewards at 5 / 10 / 25 / 50 referrals. Best for tangible products people want more of.

The Superhuman model

Curated onboarding · 180K list

Slow, invite-only, high-touch onboarding off the list. Best for premium B2B where scarcity signals quality.

Copy and paste

Templates & resources.

Landing headline formula

modeled on Robinhood's 2014 page

[Kill the pain] — no jargon.

Headline: {Outcome}, {qualifier}.
e.g. "Commission-free trading."

Sub: Stop {pain} — {number}.
e.g. "Stop paying up to $10 per trade."

Button: Get early access

Seed-the-loop DM

modeled on Harry's friends-first launch

Subject: can I get your honest take?

Hey {name} — I'm building {product}: {one-line promise}.

Before I go further I'm collecting {N} early users who feel {pain}. If that's you, the waitlist is here: {link}

No pressure either way — but if you know one person who has this problem, forwarding this is the biggest favor you could do me.

Weekly value email skeleton

modeled on Levels' Friday Forum

Subject: {Product} update #{n} — {one useful thing}

1. One insight your readers can use TODAY (not about your product)
2. One build update, one screenshot
3. One ask max — reply, vote, or share

Rule: value first. If the email only helps you, don't send it.

From the showcase

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Discussion

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Receipts

Sources & references.

Last reviewed

  1. 1.
    Robinhood waitlist — 500K at launch; ~1M per founders (opens in a new tab)

    TechCrunch, Dec 2014; founder interviews

  2. 2.
    Harry's ~100K emails in one week / 77% via referral (opens in a new tab)

    Harry's team on tim.blog, 2014

  3. 3.
    Dropbox waitlist 5K → 75K overnight (2008) (opens in a new tab)

    Drew Houston's demo video, via TechCrunch 2011

  4. 4.
    Mailbox fills 1M reservations (opens in a new tab)

    MacRumors, March 2013

  5. 5.
    Superhuman's 180K waitlist (founder-reported) (opens in a new tab)

    InsideHook, 2019, citing The New York Times

  6. 6.
    Monzo's waiting list and golden tickets (opens in a new tab)

    Monzo blog, 2018

  7. 7.
    Levels' 100K+ waitlist and beta pacing (opens in a new tab)

    Levels podcast, ep. 1 (head of growth)

Company names and logos are trademarks of their owners, shown only to identify the companies discussed. Spot an error? Tell us below — we correct and date every change.

Corrections

  • Robinhood: "1M signups before launch" changed to "~1M waitlist (founder-reported)". TechCrunch reported 500K at the 2014 App Store launch.
  • Mailbox: corrected to 1M reservations in ~6 weeks (MacRumors); the previous 800K figure and its Verge citation could not be verified.
  • Monzo: removed an unverified 250K queue size.
  • Removed the Formula Bot example — we couldn't find a source for its waitlist figure.

Spot an error?

Tell us what's wrong — we fix it and log the change here.

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