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Growth idea action plan

Viral waiting list with queue-jumping referrals

Create a pre-launch waiting list where users can move up the queue by referring friends, turning exclusivity into viral distribution.

rare tacticfree budget

Why this can grow a startup

Monzo attracted 200,000 signups before launch using a waiting list that showed users their position in the queue and offered a "Bump me up" button tied to a personal referral link. The mechanic combines loss aversion (you're behind others) with a clear reward (skip ahead). Each share gives the brand free social media visibility while deepening engagement with the referrer.

Company example

Monzo (UK neobank)

Source and metric

Source: targetinternet.com

Source discovered: March 24, 2026

EmailReferralspre-launch
GrowthDex operator note

When to use it

Use this when Email, Referrals is relevant to pre-launch and you can run a bounded test with a free budget.

When not to use it

Do not use it as a substitute for customer evidence, a clear owner, or a measurable stop condition. Local platform rules and market behavior still need checking.

Founder checklist

  1. Read targetinternet.com and identify what is directly supported.
  2. Choose one channel context: Email, Referrals.
  3. Define the test around one observable customer behavior.
  4. Set an owner, evidence window, and stop condition before launch.

Explore the context

Advisory bridge

Apply this with an operator

Connect activation, customer value, retention, and referral into one measurable loop.

Work with Ian