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ECHO — Pricing & Virality Model

Pricing tiers

| Tier | Price | Plays/day | Archetypes | Voices | Custom |

|---|---|---|---|---|---|

| Free | $0 | 1 | Oracle only | Standard | — |

| Monthly | $9/mo | Unlimited | All 6 | Premium (ElevenLabs) | — |

| Annual | $89/yr | Unlimited | All 6 | Premium | — |

| Lifetime | $299 once | Unlimited | All 6 + future drops | Premium | Custom archetype builder |

Anchor: $299 lifetime is the headline. $9/mo feels cheap by comparison. Annual is the conversion sweet spot (2x ARPU vs monthly churn cohort).

Viral coefficient model

• K = invites_sent × conversion_rate
• Per share: clip auto-watermarked "made with ECHO · which archetype are you?"
• Estimated invites/active user/week: 1.4 (TikTok + iMessage + Instagram story)
• Estimated viewer→install conversion: 11% (typology quizzes historically 8-15%)
• K ≈ 1.4 × 0.11 = 0.154/week, 0.62 cumulative over month-1 before churn

To break K=1 we need either (a) clip quality so high it's reshared 2x or (b) "your friend was assigned The Lover, what are you?" loop. Both shippable in v2.

Levers ranked

1. Typology curiosity — biggest pull, MBTI/Enneagram-tier

2. Mythic aesthetic — visually distinct on FYP feeds

3. Spoken affirmation as artifact — feels like prophecy, not content

4. Quarterly archetype drops — built-in re-engagement

5. Streak archive — sunk-cost retention