Definition
The organic growth that occurs when users bring in other users through referrals, content sharing, or social features. Measured by metrics like the K-factor, virality helps reduce CAC and amplify the impact of lifecycle loops.
K-Factor = Invitations per User x Conversion Rate. Viral Users = Initial Users x K / (1 - K), when K < 1. For K = 0.3: 50,000 x 0.3 / 0.7 = 21,429 additional organic users.
Add shareable content at emotional peaks (workout completion, milestone, creation). Make sharing effortless (pre-formatted posts, one-tap share). Ensure shared content is valuable to recipients (not just promotional). Use referral programs with dual incentives (both referrer and friend benefit).
0.1-0.5 for most apps. Above 0.5 is exceptional. True virality (K > 1.0) is nearly impossible for subscription apps. Even a modest 0.2 K-factor means 20% of your growth is free — a meaningful competitive advantage over time.
Yes, if designed well. The best referral programs: offer meaningful rewards to BOTH parties, make sharing easy, and trigger at high-satisfaction moments. A meditation app offering 'give a friend 1 free month, get 1 free month' saw 3x more referrals than their previous 'share for rewards' program.
The core promise of benefit that explains why a user should subscribe. A strong value proposition is consistently reinforced across onboarding, paywalls, and messaging, connecting to user needs to premium features.
A pricing research method that helps determine optimal pricing by asking users at what price a product feels too cheap, too expensive, and just right. It's commonly used to evaluate subscription pricing sensitivity and willingness to pay.
A form of ad attribution that credits conversions to an ad that was viewed (but not clicked) prior to the app install. It's particularly relevant for channels like YouTube, OTT, or display, where ad exposure influences user decisions indirectly.
When a user intentionally cancels their subscription. Typically, due to cost sensitivity, unmet expectations, or perceived lack of value. Differentiated from involuntary churn, which occurs due to failed payments or technical issues.
Botsi automatically shows the right price to every user. Stop guessing and start growing.