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Invite Loop: examples and growth mechanics | Tactern
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Reusable growth pattern · 2 implementations

Invite Loop

One user invites a collaborator to finish a task, introducing that person to the product.

ActivationVirality
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How it works

Generic pattern · Tactern analysis
  1. 01Trigger
    Create workspaceTrigger
  2. 02Distribution
    Invite teammateNext action
  3. 03Distribution
    Join shared workNext action
  4. 04User action
    CollaborateNext action
  5. 05Outcome
    Invite othersPotential outcome

Why it might work

An invitation can carry a real task, document, or conversation instead of a generic promotional message. The recipient arrives with context and a reason to participate. Additional invitations emerge when useful work needs another person.

Pattern anatomy

Trigger
Create workspace
Incentive
Make the next useful step a shared one.
Mechanism
One user invites a collaborator to finish a task, introducing that person to the product.
Business outcome
Activation and Virality
Desired user action
Invite others
Psychological principle
Task interdependence and contextual relevance.

When it works best

  • Work that depends on multiple people
  • Shared artifacts

What to watch for

  • Premature invitations
  • Spam and unwanted notifications

Use the linked company examples to investigate the implementation and constraints. Similar mechanics do not imply similar results.

In this pattern

The mechanismPattern anatomyWhen it works bestRisksCompanies using it
Research lens

A mechanism, not a recipe.

Look for the conditions that make the pattern useful in your own product.

Read our methodology

The pattern in practice.

See what each company does with the same underlying idea.

FigmaCollaboration loop
01Create file
02Share access
03Teammate joins
04Review together
05Invite another collaborator
Mechanism map · Tactern analysis
Figma

The multiplayer invite loop

Figma’s shared files give designers a practical reason to invite teammates into a working document.

ActivationViralityProduct-led

Related patterns

Template-Led Acquisition

Turn a specific search into a useful starting point.

3 tactics

Two-Sided Referral

Give both people a reason to make the introduction.

2 tactics

Shareable Output

Let the work travel beyond the workspace.

5 tactics

Template Activation

Replace the blank page with a working example.

SlackCollaboration loop
01Create workspace
02Invite colleagues
03Join channel
04Start conversation
Mechanism map · Tactern analysis
Slack

Invite teammates into the workspace

Slack workspaces become useful when colleagues join the conversation.

ActivationViralityProduct-led
3 tactics